🔩 Moisture sensor issues Repair Guide for Electrolux EFME627UTT
💡 Don’t panic! Moisture sensor issues on your Electrolux EFME627UTT dryer is a common issue that many DIY enthusiasts successfully repair. This comprehensive guide will walk you through each step with detailed explanations to help you diagnose and fix the problem safely and effectively. 🎉 You’ve got this!
🔧 Required Tools & Parts
📝 Pro Tip: Gather all your tools and parts before starting. This saves time and prevents frustration mid-repair. Most of these parts can be found online or at appliance parts stores. Make sure you have the correct model number when ordering parts! ✔️ Double-check compatibility before purchasing.
⚠️ Safety First!
⚠️ Always disconnect power before working on your dryer. Electrical safety is non-negotiable. If you’re working with gas dryers, also shut off the gas supply. If you’re unsure about any step, consult a professional technician. Your safety is more important than saving a few dollars! ⚠️ When in doubt, call a pro!
✔️ Step-by-Step Repair Instructions
🔌
🔧 Step 1: Unplug dryer and remove front panel
- Locate the power cord at the rear of the dryer, approximately 4-6 inches from the floor on the left side.
- Grip the plug (not the cord) and pull firmly straight out from the wall outlet to disconnect power.
- Move to the dryer’s right side and pull the unit approximately 2 feet away from the wall to create working space.
- Open the dryer door fully to access the interior.
- Locate two Phillips-head screws inside the door opening – one on the left side and one on the right side, positioned approximately 2 inches below the top edge of the door frame.
- Remove both screws using a Phillips #2 screwdriver, rotating counterclockwise. Set these screws aside.
- Close the dryer door completely.
- Locate the top front edge of the dryer where the top panel meets the front panel.
- Insert a 3-inch putty knife or flat-blade screwdriver into the seam between the top and front panels, approximately 3 inches from the left corner.
- Push the blade in about 1 inch and twist gently to release the spring clip. You’ll feel the clip disengage.
- Repeat this process 3 inches from the right corner to release the second spring clip.
- Lift the top panel up approximately 45 degrees – it will pivot on hinges at the rear.
- Prop the top panel against the wall behind the dryer or have someone hold it open.
- Locate the two wire connectors attached to the door switch on the right side of the front panel opening.
- Disconnect both wire harnesses by pressing the release tab and pulling straight out.
- Grasp both sides of the front panel and lift straight up approximately 1 inch to clear the bottom retaining clips.
- Pull the bottom of the panel toward you and set it aside on a protected surface.
🔍
🛠️ Step 2: Locate moisture sensor bars inside drum
- Open the dryer door fully until it stops at approximately 90 degrees.
- Look at the front interior wall of the drum, directly below the door opening.
- Identify two parallel metal strips running vertically, positioned approximately 3-4 inches from the left side of the drum opening.
- Note that these sensor bars are each approximately 4 inches long and 1/4 inch wide, made of stainless steel or chrome-plated metal.
- Observe that the bars are mounted flush with the white or gray plastic drum liner, with approximately 1/2 inch of space between them.
- Run your finger along each bar to feel the smooth metal surface – these strips will feel slightly different from the surrounding drum material.
- Look for two small mounting points at the top and bottom of each sensor bar where they attach to the drum liner.
- Trace the sensor bars to locate where the wiring connects behind the drum liner – you’ll see the bars extend through small slots in the liner material.
- Inspect the surface of both bars for any visible residue, fabric softener buildup, or discoloration that appears as white film or dark streaks.
- Verify you’ve located the correct components by confirming both bars are identical in size, parallel to each other, and positioned in the front lower section of the drum (not on the back wall or sides).
- Note the exact vertical position: the sensor bars begin approximately 2 inches below the door opening rim and extend downward toward the drum’s bottom curve.
🧹
⚙️ Step 3: Clean sensor bars with rubbing alcohol and lint-free cloth
- Locate the moisture sensor bars inside the drum – they appear as two parallel metal strips, approximately 3 inches long and 1/4 inch wide, positioned on the back wall of the drum, 4-6 inches from the bottom, centered horizontally.
- Pour 91% isopropyl rubbing alcohol onto a lint-free cloth (microfiber or cotton surgical gauze works well) until the cloth is damp but not dripping.
- Wipe the first sensor bar firmly from left to right using straight strokes, applying moderate pressure for 3-4 passes to remove mineral deposits, fabric softener residue, and lint buildup.
- Flip the cloth to a clean section and wipe the same sensor bar again from right to left for 2-3 more passes until the metal surface appears shiny and uniform.
- Repeat steps 3-4 on the second sensor bar, using a fresh section of the lint-free cloth dampened with alcohol.
- Inspect both sensor bars under good lighting – the metal should look bright silver with no white chalky deposits, sticky film, or discoloration visible.
- Use a dry section of the lint-free cloth to wipe both sensor bars once more, removing any remaining alcohol and loosened residue.
- Run your fingernail lightly across each sensor bar surface – it should feel completely smooth with no bumps, rough patches, or sticky areas that catch your fingernail.
- Allow 2-3 minutes for any remaining alcohol to evaporate completely before proceeding to the next step.
- Verify the sensors are clean by looking at them from a 45-degree angle under direct light – you should see a consistent reflective shine across the entire length of both bars with no dull spots or streaks remaining.
🔧
🔩 Step 4: Remove any lint or residue from sensor surface
- Locate the moisture sensor bars inside the drum—these are two vertical metal strips, each approximately 4 inches long and 0.25 inches wide, positioned on the rear drum wall about 3 inches apart from each other, centered horizontally.
- Dampen a clean white cloth or microfiber towel with white vinegar (do not use colored cloths as dyes may transfer).
- Wipe the first sensor bar using firm, downward strokes from top to bottom, applying moderate pressure to remove fabric softener buildup, mineral deposits, and lint residue.
- Repeat the wiping motion 3-4 times on the same sensor bar until the metal surface appears shiny and smooth.
- Move to the second sensor bar and repeat the same wiping process with 3-4 downward strokes.
- Inspect both sensor bars for any remaining white or gray film—this indicates residual fabric softener or mineral deposits.
- If residue remains visible, wrap the damp cloth around your index finger and use small circular motions on each sensor bar, applying consistent pressure for 10-15 seconds per bar.
- Take a dry section of the cloth and wipe both sensor bars completely dry using downward strokes.
- Run your fingernail lightly along each sensor bar surface—you should feel smooth metal with no bumps, rough patches, or sticky residue.
- Check the surrounding drum wall area within 2 inches of each sensor bar and wipe away any lint accumulation using the dry cloth.
- Verify the sensors are completely dry by touching them with your fingertip—they should feel smooth, cool, and dry with no tackiness.
🔍
đź“‹ Step 5: Check if service menu is available for recalibration
- Locate the dryer’s control panel at the top front of the unit, directly above the door opening.
- Press and hold the “Signal” button (located on the right side of the control panel, second button from the right edge) for 3 seconds until you hear a beep.
- While continuing to hold “Signal,” press the “Start/Pause” button (the large button on the far right) once, then release both buttons.
- Look at the LED display screen in the center of the control panel—if the service menu is accessible, you’ll see “t01” or “t00” appear on the display instead of the normal time readout.
- If the display shows “t01” or similar diagnostic code, press the “Cycle Selector” dial once to scroll through available test modes—you should see codes ranging from t01 through t10.
- Rotate the “Cycle Selector” dial clockwise until “t03” appears on the display—this is the sensor calibration mode.
- Press “Start/Pause” once to enter the calibration routine—the display will show “CAL” and the drum will rotate for 30-45 seconds.
- Wait for the drum to stop completely and observe the display—it should show “PASS” if calibration succeeded, or “FAIL” if sensors require replacement.
- If “PASS” appears, press and hold “Signal” for 3 seconds to exit the service menu—the display will return to normal operating mode.
- If “FAIL” appears or no service menu codes displayed in step 4, the control board firmware version doesn’t support user-accessible calibration—proceed to Step 6 for alternative troubleshooting methods.
- Record the diagnostic code displayed before exiting, as this indicates which sensor circuit was tested (moisture sensor is code “t03”).
🔧
âś… Step 6: Access service mode if available (consult manual for method)
- Locate the control panel at the top front of the dryer, which displays the cycle settings and digital readout.
- Press and hold the “Options” button (located on the right side of the control panel, third button from the right) and the “Start/Pause” button (rightmost button) simultaneously for 3 seconds.
- Release both buttons when you hear a single beep and see the display change to show “t01” or “t:01” on the screen.
- Press the “Options” button repeatedly to cycle through diagnostic codes, which appear as “t01” through “t16” on the display.
- Observe the following key diagnostic codes:
- Press “Start/Pause” to activate the currently displayed test, which will run for approximately 10-30 seconds depending on the test selected.
- Watch the display for error codes that appear as “E” followed by two digits (such as “E64” for heating element failure or “E56” for moisture sensor issues).
- Write down any error codes displayed, as these indicate specific component failures requiring attention.
- Exit service mode by pressing and holding both “Options” and “Start/Pause” buttons simultaneously for 3 seconds, or by unplugging the dryer for 10 seconds then plugging it back in.
- Verify successful exit when the display returns to the normal standby screen showing “Push to Start” or the standard cycle display.
🧪
🔍 Step 7: Test sensor resistance with multimeter
- Set your digital multimeter to the resistance (ohms/Ω) setting at the 20k ohm range.
- Locate the moisture sensor wires you disconnected in the previous step—these are two white wires with push-on connectors, positioned at the front right corner of the drum opening, approximately 3 inches below the lint filter housing.
- Touch the red multimeter probe to the metal terminal on one of the disconnected sensor wires.
- Touch the black multimeter probe to the metal terminal on the other disconnected sensor wire.
- Read the resistance value on the multimeter display—you should see a reading between 40,000 and 60,000 ohms (40k-60k Ω) at room temperature with dry sensor bars.
- Wet your fingertip with tap water and simultaneously touch both metal sensor bars inside the drum (these are two vertical chrome strips, each 4 inches long, located on the rear drum wall, spaced 2.5 inches apart).
- Keep your wet finger bridging both sensor bars and observe the multimeter reading drop to between 10,000 and 30,000 ohms (10k-30k Ω).
- Remove your finger and dry the sensor bars with a cloth—the resistance reading should climb back up to the 40,000-60,000 ohm range within 30 seconds.
- If readings fall outside these ranges, or if the reading shows “OL” (over limit/infinite resistance), the moisture sensor is faulty and requires replacement with part number 137353510.
- If readings are within the acceptable ranges, the moisture sensor is functioning correctly—the issue lies elsewhere in the dryer’s control system.
- Write down your test results for reference: dry resistance reading and wet resistance reading.
🧪
đź’ˇ Step 8: Sensor should show resistance change when wet vs dry
- Locate your digital multimeter and turn the dial to the resistance (Ω) setting, selecting the 20K or 200K ohm range.
- Touch the two multimeter probes together to verify the meter reads “0” or near zero, confirming the meter is functioning properly.
- Identify the two metal sensor bars mounted on the drum’s rear interior wall, positioned approximately 8 inches apart horizontally and 4 inches above the lint filter housing.
- Place one multimeter probe on the left sensor bar and the other probe on the right sensor bar, making firm contact with the bare metal surface of each bar.
- Record the resistance reading displayed on the multimeter screen – a properly functioning dry sensor should read between 1.5 megohms (1,500K ohms) and infinity (displayed as “OL” or “1” on most meters).
- Fill a spray bottle with clean tap water and mist both sensor bars until they are visibly wet with water droplets covering the metal surfaces.
- Place the multimeter probes back on the wet sensor bars in the same positions, maintaining firm contact.
- Observe the resistance reading drop dramatically – a functioning sensor will show between 100K ohms and 500K ohms when wet, at least a 75% reduction from the dry reading.
- Use a clean, dry cloth to wipe both sensor bars completely dry, removing all water droplets.
- Test the dry sensors again with the multimeter probes – the resistance should return to the original high reading above 1.5 megohms within 30 seconds of drying.
- If readings remain below 800K ohms when dry, or show no change between wet and dry (less than 50% variation), the sensor bars require cleaning with fine-grit sandpaper (220-grit) or replacement (part number 5303937140).
âś…
⚡ Step 9: If sensor doesn’t respond, replace sensor assembly
- Order replacement moisture sensor assembly part number 137035800 or 5303937189 (both compatible with EFME627UTT).
- Verify your new sensor matches the old one: it should be a white plastic bar approximately 10 inches long with two metal sensing strips running its length and a 2-wire connector at one end with white and gray wires.
- Locate the existing sensor mounted horizontally inside the dryer drum, positioned at the front bottom edge, approximately 2 inches from the right side when facing the open door.
- Use a 1/4-inch nut driver to remove the single mounting screw securing the sensor bracket to the drum front panel.
- Slide the sensor forward 1 inch to disengage it from the metal retaining tab on the left side.
- Disconnect the 2-wire connector by pressing the locking tab on top while pulling the connector apart.
- Remove the old sensor assembly completely from the drum.
- Insert the new sensor into the mounting location, aligning the left edge with the metal retaining tab.
- Slide the sensor to the left until it clicks into place under the retaining tab.
- Align the single screw hole on the right bracket with the threaded hole in the drum panel.
- Insert and tighten the 1/4-inch mounting screw using the nut driver until snug (approximately 8-10 inch-pounds of pressure).
- Reconnect the 2-wire connector by pushing both halves together until you hear and feel a distinct click, indicating the locking tab has engaged.
- Test the installation by running your fingernail across both metal sensing strips—they should feel flush with the white plastic housing, not raised or loose.
- Proceed to Step 10 to reassemble the dryer and test sensor functionality.
🧪
🎯 Step 10: Reinstall sensor and test moisture detection
- Hold the moisture sensor assembly with the two metal sensor bars facing toward the drum interior and the wire connector pointing toward the rear of the dryer cabinet.
- Align the sensor’s mounting bracket with the two screw holes located on the lint filter housing, approximately 3 inches below the lint screen opening on the right side.
- Insert the two 1/4-inch hex head screws (part number 134413500) through the mounting bracket holes and thread them into the housing by hand.
- Tighten both screws using a 1/4-inch nut driver, turning clockwise 3-4 full rotations until the sensor bracket sits flush against the housing with no gaps visible.
- Locate the white 2-pin connector attached to the sensor’s wire leads (approximately 6 inches of wire length from the sensor body).
- Find the matching white female connector coming from the dryer’s main wire harness, positioned 8-10 inches behind the lint filter housing near the blower assembly.
- Push the two connectors together firmly until you hear and feel a distinct click, indicating the locking tab has engaged.
- Verify the connection by gently pulling on both sides of the connector—it should not separate with moderate force.
- Plug the dryer power cord into the wall outlet and turn on the circuit breaker.
- Press the control panel power button and select any automatic dry cycle (Sensor Dry or Auto Dry).
- Dampen a cotton towel with approximately 1 cup of water, squeeze out excess, and place it in the drum.
- Close the door and press the start button—the dryer should begin the cycle normally.
- Allow the cycle to run for 5-7 minutes, then open the door and check that the estimated time remaining has adjusted from its initial setting, confirming the moisture sensor is reading the damp fabric.
- Press stop/cancel, remove the towel, and verify the sensor bars are not damaged or bent.
🧪
🔧 Step 11: Run test cycle with damp clothes to verify
- Close the dryer door firmly until you hear it latch click into place.
- Dampen 3-4 bath towels or similar cotton items with approximately 1 cup of water per towel, wringing them out so they’re wet but not dripping.
- Place the damp towels into the drum, spreading them evenly rather than bunching them together.
- Press the power button located at the top center of the control panel—the display screen will illuminate.
- Rotate the cycle selector knob clockwise 3 clicks to reach the “Normal Dry” setting—you’ll see “Normal Dry” appear on the digital display.
- Press the “Dryness Level” button once to select “More Dry”—the corresponding LED indicator will light up on the right side of the control panel.
- Press the “Start/Pause” button (green button on the far right of the control panel)—you’ll hear the drum motor engage within 2-3 seconds.
- Verify the drum rotates smoothly in both directions (it will reverse every 20-30 seconds) by watching through the door glass.
- Place your hand near the door glass after 2 minutes of operation—you should feel warmth indicating the heating element is functioning.
- Listen for any unusual grinding, squealing, or thumping sounds during the first 5 minutes—normal operation produces only a low hum and gentle tumbling sound.
- Allow the cycle to run for 10 minutes, then press “Start/Pause” to stop the cycle.
- Open the door and check one towel—it should feel warm to the touch and noticeably drier than when loaded.
- Restart the cycle by pressing “Start/Pause” again and let it complete the full cycle (approximately 35-45 minutes).
- When the cycle ends, the display will show “End” and a chime will sound 3 times—the towels should be completely dry with no damp spots.
đź›’ Recommended Products
🛠️ Step 2: Locate moisture sensor bars inside drum
- Open the dryer door fully until it stops at approximately 90 degrees.
- Look at the front interior wall of the drum, directly below the door opening.
- Identify two parallel metal strips running vertically, positioned approximately 3-4 inches from the left side of the drum opening.
- Note that these sensor bars are each approximately 4 inches long and 1/4 inch wide, made of stainless steel or chrome-plated metal.
- Observe that the bars are mounted flush with the white or gray plastic drum liner, with approximately 1/2 inch of space between them.
- Run your finger along each bar to feel the smooth metal surface – these strips will feel slightly different from the surrounding drum material.
- Look for two small mounting points at the top and bottom of each sensor bar where they attach to the drum liner.
- Trace the sensor bars to locate where the wiring connects behind the drum liner – you’ll see the bars extend through small slots in the liner material.
- Inspect the surface of both bars for any visible residue, fabric softener buildup, or discoloration that appears as white film or dark streaks.
- Verify you’ve located the correct components by confirming both bars are identical in size, parallel to each other, and positioned in the front lower section of the drum (not on the back wall or sides).
- Note the exact vertical position: the sensor bars begin approximately 2 inches below the door opening rim and extend downward toward the drum’s bottom curve.
🧹
⚙️ Step 3: Clean sensor bars with rubbing alcohol and lint-free cloth
- Locate the moisture sensor bars inside the drum – they appear as two parallel metal strips, approximately 3 inches long and 1/4 inch wide, positioned on the back wall of the drum, 4-6 inches from the bottom, centered horizontally.
- Pour 91% isopropyl rubbing alcohol onto a lint-free cloth (microfiber or cotton surgical gauze works well) until the cloth is damp but not dripping.
- Wipe the first sensor bar firmly from left to right using straight strokes, applying moderate pressure for 3-4 passes to remove mineral deposits, fabric softener residue, and lint buildup.
- Flip the cloth to a clean section and wipe the same sensor bar again from right to left for 2-3 more passes until the metal surface appears shiny and uniform.
- Repeat steps 3-4 on the second sensor bar, using a fresh section of the lint-free cloth dampened with alcohol.
- Inspect both sensor bars under good lighting – the metal should look bright silver with no white chalky deposits, sticky film, or discoloration visible.
- Use a dry section of the lint-free cloth to wipe both sensor bars once more, removing any remaining alcohol and loosened residue.
- Run your fingernail lightly across each sensor bar surface – it should feel completely smooth with no bumps, rough patches, or sticky areas that catch your fingernail.
- Allow 2-3 minutes for any remaining alcohol to evaporate completely before proceeding to the next step.
- Verify the sensors are clean by looking at them from a 45-degree angle under direct light – you should see a consistent reflective shine across the entire length of both bars with no dull spots or streaks remaining.
🔧
🔩 Step 4: Remove any lint or residue from sensor surface
- Locate the moisture sensor bars inside the drum—these are two vertical metal strips, each approximately 4 inches long and 0.25 inches wide, positioned on the rear drum wall about 3 inches apart from each other, centered horizontally.
- Dampen a clean white cloth or microfiber towel with white vinegar (do not use colored cloths as dyes may transfer).
- Wipe the first sensor bar using firm, downward strokes from top to bottom, applying moderate pressure to remove fabric softener buildup, mineral deposits, and lint residue.
- Repeat the wiping motion 3-4 times on the same sensor bar until the metal surface appears shiny and smooth.
- Move to the second sensor bar and repeat the same wiping process with 3-4 downward strokes.
- Inspect both sensor bars for any remaining white or gray film—this indicates residual fabric softener or mineral deposits.
- If residue remains visible, wrap the damp cloth around your index finger and use small circular motions on each sensor bar, applying consistent pressure for 10-15 seconds per bar.
- Take a dry section of the cloth and wipe both sensor bars completely dry using downward strokes.
- Run your fingernail lightly along each sensor bar surface—you should feel smooth metal with no bumps, rough patches, or sticky residue.
- Check the surrounding drum wall area within 2 inches of each sensor bar and wipe away any lint accumulation using the dry cloth.
- Verify the sensors are completely dry by touching them with your fingertip—they should feel smooth, cool, and dry with no tackiness.
🔍
đź“‹ Step 5: Check if service menu is available for recalibration
- Locate the dryer’s control panel at the top front of the unit, directly above the door opening.
- Press and hold the “Signal” button (located on the right side of the control panel, second button from the right edge) for 3 seconds until you hear a beep.
- While continuing to hold “Signal,” press the “Start/Pause” button (the large button on the far right) once, then release both buttons.
- Look at the LED display screen in the center of the control panel—if the service menu is accessible, you’ll see “t01” or “t00” appear on the display instead of the normal time readout.
- If the display shows “t01” or similar diagnostic code, press the “Cycle Selector” dial once to scroll through available test modes—you should see codes ranging from t01 through t10.
- Rotate the “Cycle Selector” dial clockwise until “t03” appears on the display—this is the sensor calibration mode.
- Press “Start/Pause” once to enter the calibration routine—the display will show “CAL” and the drum will rotate for 30-45 seconds.
- Wait for the drum to stop completely and observe the display—it should show “PASS” if calibration succeeded, or “FAIL” if sensors require replacement.
- If “PASS” appears, press and hold “Signal” for 3 seconds to exit the service menu—the display will return to normal operating mode.
- If “FAIL” appears or no service menu codes displayed in step 4, the control board firmware version doesn’t support user-accessible calibration—proceed to Step 6 for alternative troubleshooting methods.
- Record the diagnostic code displayed before exiting, as this indicates which sensor circuit was tested (moisture sensor is code “t03”).
🔧
âś… Step 6: Access service mode if available (consult manual for method)
- Locate the control panel at the top front of the dryer, which displays the cycle settings and digital readout.
- Press and hold the “Options” button (located on the right side of the control panel, third button from the right) and the “Start/Pause” button (rightmost button) simultaneously for 3 seconds.
- Release both buttons when you hear a single beep and see the display change to show “t01” or “t:01” on the screen.
- Press the “Options” button repeatedly to cycle through diagnostic codes, which appear as “t01” through “t16” on the display.
- Observe the following key diagnostic codes:
- Press “Start/Pause” to activate the currently displayed test, which will run for approximately 10-30 seconds depending on the test selected.
- Watch the display for error codes that appear as “E” followed by two digits (such as “E64” for heating element failure or “E56” for moisture sensor issues).
- Write down any error codes displayed, as these indicate specific component failures requiring attention.
- Exit service mode by pressing and holding both “Options” and “Start/Pause” buttons simultaneously for 3 seconds, or by unplugging the dryer for 10 seconds then plugging it back in.
- Verify successful exit when the display returns to the normal standby screen showing “Push to Start” or the standard cycle display.
🧪
🔍 Step 7: Test sensor resistance with multimeter
- Set your digital multimeter to the resistance (ohms/Ω) setting at the 20k ohm range.
- Locate the moisture sensor wires you disconnected in the previous step—these are two white wires with push-on connectors, positioned at the front right corner of the drum opening, approximately 3 inches below the lint filter housing.
- Touch the red multimeter probe to the metal terminal on one of the disconnected sensor wires.
- Touch the black multimeter probe to the metal terminal on the other disconnected sensor wire.
- Read the resistance value on the multimeter display—you should see a reading between 40,000 and 60,000 ohms (40k-60k Ω) at room temperature with dry sensor bars.
- Wet your fingertip with tap water and simultaneously touch both metal sensor bars inside the drum (these are two vertical chrome strips, each 4 inches long, located on the rear drum wall, spaced 2.5 inches apart).
- Keep your wet finger bridging both sensor bars and observe the multimeter reading drop to between 10,000 and 30,000 ohms (10k-30k Ω).
- Remove your finger and dry the sensor bars with a cloth—the resistance reading should climb back up to the 40,000-60,000 ohm range within 30 seconds.
- If readings fall outside these ranges, or if the reading shows “OL” (over limit/infinite resistance), the moisture sensor is faulty and requires replacement with part number 137353510.
- If readings are within the acceptable ranges, the moisture sensor is functioning correctly—the issue lies elsewhere in the dryer’s control system.
- Write down your test results for reference: dry resistance reading and wet resistance reading.
🧪
đź’ˇ Step 8: Sensor should show resistance change when wet vs dry
- Locate your digital multimeter and turn the dial to the resistance (Ω) setting, selecting the 20K or 200K ohm range.
- Touch the two multimeter probes together to verify the meter reads “0” or near zero, confirming the meter is functioning properly.
- Identify the two metal sensor bars mounted on the drum’s rear interior wall, positioned approximately 8 inches apart horizontally and 4 inches above the lint filter housing.
- Place one multimeter probe on the left sensor bar and the other probe on the right sensor bar, making firm contact with the bare metal surface of each bar.
- Record the resistance reading displayed on the multimeter screen – a properly functioning dry sensor should read between 1.5 megohms (1,500K ohms) and infinity (displayed as “OL” or “1” on most meters).
- Fill a spray bottle with clean tap water and mist both sensor bars until they are visibly wet with water droplets covering the metal surfaces.
- Place the multimeter probes back on the wet sensor bars in the same positions, maintaining firm contact.
- Observe the resistance reading drop dramatically – a functioning sensor will show between 100K ohms and 500K ohms when wet, at least a 75% reduction from the dry reading.
- Use a clean, dry cloth to wipe both sensor bars completely dry, removing all water droplets.
- Test the dry sensors again with the multimeter probes – the resistance should return to the original high reading above 1.5 megohms within 30 seconds of drying.
- If readings remain below 800K ohms when dry, or show no change between wet and dry (less than 50% variation), the sensor bars require cleaning with fine-grit sandpaper (220-grit) or replacement (part number 5303937140).
âś…
⚡ Step 9: If sensor doesn’t respond, replace sensor assembly
- Order replacement moisture sensor assembly part number 137035800 or 5303937189 (both compatible with EFME627UTT).
- Verify your new sensor matches the old one: it should be a white plastic bar approximately 10 inches long with two metal sensing strips running its length and a 2-wire connector at one end with white and gray wires.
- Locate the existing sensor mounted horizontally inside the dryer drum, positioned at the front bottom edge, approximately 2 inches from the right side when facing the open door.
- Use a 1/4-inch nut driver to remove the single mounting screw securing the sensor bracket to the drum front panel.
- Slide the sensor forward 1 inch to disengage it from the metal retaining tab on the left side.
- Disconnect the 2-wire connector by pressing the locking tab on top while pulling the connector apart.
- Remove the old sensor assembly completely from the drum.
- Insert the new sensor into the mounting location, aligning the left edge with the metal retaining tab.
- Slide the sensor to the left until it clicks into place under the retaining tab.
- Align the single screw hole on the right bracket with the threaded hole in the drum panel.
- Insert and tighten the 1/4-inch mounting screw using the nut driver until snug (approximately 8-10 inch-pounds of pressure).
- Reconnect the 2-wire connector by pushing both halves together until you hear and feel a distinct click, indicating the locking tab has engaged.
- Test the installation by running your fingernail across both metal sensing strips—they should feel flush with the white plastic housing, not raised or loose.
- Proceed to Step 10 to reassemble the dryer and test sensor functionality.
🧪
🎯 Step 10: Reinstall sensor and test moisture detection
- Hold the moisture sensor assembly with the two metal sensor bars facing toward the drum interior and the wire connector pointing toward the rear of the dryer cabinet.
- Align the sensor’s mounting bracket with the two screw holes located on the lint filter housing, approximately 3 inches below the lint screen opening on the right side.
- Insert the two 1/4-inch hex head screws (part number 134413500) through the mounting bracket holes and thread them into the housing by hand.
- Tighten both screws using a 1/4-inch nut driver, turning clockwise 3-4 full rotations until the sensor bracket sits flush against the housing with no gaps visible.
- Locate the white 2-pin connector attached to the sensor’s wire leads (approximately 6 inches of wire length from the sensor body).
- Find the matching white female connector coming from the dryer’s main wire harness, positioned 8-10 inches behind the lint filter housing near the blower assembly.
- Push the two connectors together firmly until you hear and feel a distinct click, indicating the locking tab has engaged.
- Verify the connection by gently pulling on both sides of the connector—it should not separate with moderate force.
- Plug the dryer power cord into the wall outlet and turn on the circuit breaker.
- Press the control panel power button and select any automatic dry cycle (Sensor Dry or Auto Dry).
- Dampen a cotton towel with approximately 1 cup of water, squeeze out excess, and place it in the drum.
- Close the door and press the start button—the dryer should begin the cycle normally.
- Allow the cycle to run for 5-7 minutes, then open the door and check that the estimated time remaining has adjusted from its initial setting, confirming the moisture sensor is reading the damp fabric.
- Press stop/cancel, remove the towel, and verify the sensor bars are not damaged or bent.
🧪
🔧 Step 11: Run test cycle with damp clothes to verify
- Close the dryer door firmly until you hear it latch click into place.
- Dampen 3-4 bath towels or similar cotton items with approximately 1 cup of water per towel, wringing them out so they’re wet but not dripping.
- Place the damp towels into the drum, spreading them evenly rather than bunching them together.
- Press the power button located at the top center of the control panel—the display screen will illuminate.
- Rotate the cycle selector knob clockwise 3 clicks to reach the “Normal Dry” setting—you’ll see “Normal Dry” appear on the digital display.
- Press the “Dryness Level” button once to select “More Dry”—the corresponding LED indicator will light up on the right side of the control panel.
- Press the “Start/Pause” button (green button on the far right of the control panel)—you’ll hear the drum motor engage within 2-3 seconds.
- Verify the drum rotates smoothly in both directions (it will reverse every 20-30 seconds) by watching through the door glass.
- Place your hand near the door glass after 2 minutes of operation—you should feel warmth indicating the heating element is functioning.
- Listen for any unusual grinding, squealing, or thumping sounds during the first 5 minutes—normal operation produces only a low hum and gentle tumbling sound.
- Allow the cycle to run for 10 minutes, then press “Start/Pause” to stop the cycle.
- Open the door and check one towel—it should feel warm to the touch and noticeably drier than when loaded.
- Restart the cycle by pressing “Start/Pause” again and let it complete the full cycle (approximately 35-45 minutes).
- When the cycle ends, the display will show “End” and a chime will sound 3 times—the towels should be completely dry with no damp spots.
đź›’ Recommended Products
🔩 Step 4: Remove any lint or residue from sensor surface
- Locate the moisture sensor bars inside the drum—these are two vertical metal strips, each approximately 4 inches long and 0.25 inches wide, positioned on the rear drum wall about 3 inches apart from each other, centered horizontally.
- Dampen a clean white cloth or microfiber towel with white vinegar (do not use colored cloths as dyes may transfer).
- Wipe the first sensor bar using firm, downward strokes from top to bottom, applying moderate pressure to remove fabric softener buildup, mineral deposits, and lint residue.
- Repeat the wiping motion 3-4 times on the same sensor bar until the metal surface appears shiny and smooth.
- Move to the second sensor bar and repeat the same wiping process with 3-4 downward strokes.
- Inspect both sensor bars for any remaining white or gray film—this indicates residual fabric softener or mineral deposits.
- If residue remains visible, wrap the damp cloth around your index finger and use small circular motions on each sensor bar, applying consistent pressure for 10-15 seconds per bar.
- Take a dry section of the cloth and wipe both sensor bars completely dry using downward strokes.
- Run your fingernail lightly along each sensor bar surface—you should feel smooth metal with no bumps, rough patches, or sticky residue.
- Check the surrounding drum wall area within 2 inches of each sensor bar and wipe away any lint accumulation using the dry cloth.
- Verify the sensors are completely dry by touching them with your fingertip—they should feel smooth, cool, and dry with no tackiness.
🔍
đź“‹ Step 5: Check if service menu is available for recalibration
- Locate the dryer’s control panel at the top front of the unit, directly above the door opening.
- Press and hold the “Signal” button (located on the right side of the control panel, second button from the right edge) for 3 seconds until you hear a beep.
- While continuing to hold “Signal,” press the “Start/Pause” button (the large button on the far right) once, then release both buttons.
- Look at the LED display screen in the center of the control panel—if the service menu is accessible, you’ll see “t01” or “t00” appear on the display instead of the normal time readout.
- If the display shows “t01” or similar diagnostic code, press the “Cycle Selector” dial once to scroll through available test modes—you should see codes ranging from t01 through t10.
- Rotate the “Cycle Selector” dial clockwise until “t03” appears on the display—this is the sensor calibration mode.
- Press “Start/Pause” once to enter the calibration routine—the display will show “CAL” and the drum will rotate for 30-45 seconds.
- Wait for the drum to stop completely and observe the display—it should show “PASS” if calibration succeeded, or “FAIL” if sensors require replacement.
- If “PASS” appears, press and hold “Signal” for 3 seconds to exit the service menu—the display will return to normal operating mode.
- If “FAIL” appears or no service menu codes displayed in step 4, the control board firmware version doesn’t support user-accessible calibration—proceed to Step 6 for alternative troubleshooting methods.
- Record the diagnostic code displayed before exiting, as this indicates which sensor circuit was tested (moisture sensor is code “t03”).
🔧
âś… Step 6: Access service mode if available (consult manual for method)
- Locate the control panel at the top front of the dryer, which displays the cycle settings and digital readout.
- Press and hold the “Options” button (located on the right side of the control panel, third button from the right) and the “Start/Pause” button (rightmost button) simultaneously for 3 seconds.
- Release both buttons when you hear a single beep and see the display change to show “t01” or “t:01” on the screen.
- Press the “Options” button repeatedly to cycle through diagnostic codes, which appear as “t01” through “t16” on the display.
- Observe the following key diagnostic codes:
- Press “Start/Pause” to activate the currently displayed test, which will run for approximately 10-30 seconds depending on the test selected.
- Watch the display for error codes that appear as “E” followed by two digits (such as “E64” for heating element failure or “E56” for moisture sensor issues).
- Write down any error codes displayed, as these indicate specific component failures requiring attention.
- Exit service mode by pressing and holding both “Options” and “Start/Pause” buttons simultaneously for 3 seconds, or by unplugging the dryer for 10 seconds then plugging it back in.
- Verify successful exit when the display returns to the normal standby screen showing “Push to Start” or the standard cycle display.
🧪
🔍 Step 7: Test sensor resistance with multimeter
- Set your digital multimeter to the resistance (ohms/Ω) setting at the 20k ohm range.
- Locate the moisture sensor wires you disconnected in the previous step—these are two white wires with push-on connectors, positioned at the front right corner of the drum opening, approximately 3 inches below the lint filter housing.
- Touch the red multimeter probe to the metal terminal on one of the disconnected sensor wires.
- Touch the black multimeter probe to the metal terminal on the other disconnected sensor wire.
- Read the resistance value on the multimeter display—you should see a reading between 40,000 and 60,000 ohms (40k-60k Ω) at room temperature with dry sensor bars.
- Wet your fingertip with tap water and simultaneously touch both metal sensor bars inside the drum (these are two vertical chrome strips, each 4 inches long, located on the rear drum wall, spaced 2.5 inches apart).
- Keep your wet finger bridging both sensor bars and observe the multimeter reading drop to between 10,000 and 30,000 ohms (10k-30k Ω).
- Remove your finger and dry the sensor bars with a cloth—the resistance reading should climb back up to the 40,000-60,000 ohm range within 30 seconds.
- If readings fall outside these ranges, or if the reading shows “OL” (over limit/infinite resistance), the moisture sensor is faulty and requires replacement with part number 137353510.
- If readings are within the acceptable ranges, the moisture sensor is functioning correctly—the issue lies elsewhere in the dryer’s control system.
- Write down your test results for reference: dry resistance reading and wet resistance reading.
🧪
đź’ˇ Step 8: Sensor should show resistance change when wet vs dry
- Locate your digital multimeter and turn the dial to the resistance (Ω) setting, selecting the 20K or 200K ohm range.
- Touch the two multimeter probes together to verify the meter reads “0” or near zero, confirming the meter is functioning properly.
- Identify the two metal sensor bars mounted on the drum’s rear interior wall, positioned approximately 8 inches apart horizontally and 4 inches above the lint filter housing.
- Place one multimeter probe on the left sensor bar and the other probe on the right sensor bar, making firm contact with the bare metal surface of each bar.
- Record the resistance reading displayed on the multimeter screen – a properly functioning dry sensor should read between 1.5 megohms (1,500K ohms) and infinity (displayed as “OL” or “1” on most meters).
- Fill a spray bottle with clean tap water and mist both sensor bars until they are visibly wet with water droplets covering the metal surfaces.
- Place the multimeter probes back on the wet sensor bars in the same positions, maintaining firm contact.
- Observe the resistance reading drop dramatically – a functioning sensor will show between 100K ohms and 500K ohms when wet, at least a 75% reduction from the dry reading.
- Use a clean, dry cloth to wipe both sensor bars completely dry, removing all water droplets.
- Test the dry sensors again with the multimeter probes – the resistance should return to the original high reading above 1.5 megohms within 30 seconds of drying.
- If readings remain below 800K ohms when dry, or show no change between wet and dry (less than 50% variation), the sensor bars require cleaning with fine-grit sandpaper (220-grit) or replacement (part number 5303937140).
âś…
⚡ Step 9: If sensor doesn’t respond, replace sensor assembly
- Order replacement moisture sensor assembly part number 137035800 or 5303937189 (both compatible with EFME627UTT).
- Verify your new sensor matches the old one: it should be a white plastic bar approximately 10 inches long with two metal sensing strips running its length and a 2-wire connector at one end with white and gray wires.
- Locate the existing sensor mounted horizontally inside the dryer drum, positioned at the front bottom edge, approximately 2 inches from the right side when facing the open door.
- Use a 1/4-inch nut driver to remove the single mounting screw securing the sensor bracket to the drum front panel.
- Slide the sensor forward 1 inch to disengage it from the metal retaining tab on the left side.
- Disconnect the 2-wire connector by pressing the locking tab on top while pulling the connector apart.
- Remove the old sensor assembly completely from the drum.
- Insert the new sensor into the mounting location, aligning the left edge with the metal retaining tab.
- Slide the sensor to the left until it clicks into place under the retaining tab.
- Align the single screw hole on the right bracket with the threaded hole in the drum panel.
- Insert and tighten the 1/4-inch mounting screw using the nut driver until snug (approximately 8-10 inch-pounds of pressure).
- Reconnect the 2-wire connector by pushing both halves together until you hear and feel a distinct click, indicating the locking tab has engaged.
- Test the installation by running your fingernail across both metal sensing strips—they should feel flush with the white plastic housing, not raised or loose.
- Proceed to Step 10 to reassemble the dryer and test sensor functionality.
🧪
🎯 Step 10: Reinstall sensor and test moisture detection
- Hold the moisture sensor assembly with the two metal sensor bars facing toward the drum interior and the wire connector pointing toward the rear of the dryer cabinet.
- Align the sensor’s mounting bracket with the two screw holes located on the lint filter housing, approximately 3 inches below the lint screen opening on the right side.
- Insert the two 1/4-inch hex head screws (part number 134413500) through the mounting bracket holes and thread them into the housing by hand.
- Tighten both screws using a 1/4-inch nut driver, turning clockwise 3-4 full rotations until the sensor bracket sits flush against the housing with no gaps visible.
- Locate the white 2-pin connector attached to the sensor’s wire leads (approximately 6 inches of wire length from the sensor body).
- Find the matching white female connector coming from the dryer’s main wire harness, positioned 8-10 inches behind the lint filter housing near the blower assembly.
- Push the two connectors together firmly until you hear and feel a distinct click, indicating the locking tab has engaged.
- Verify the connection by gently pulling on both sides of the connector—it should not separate with moderate force.
- Plug the dryer power cord into the wall outlet and turn on the circuit breaker.
- Press the control panel power button and select any automatic dry cycle (Sensor Dry or Auto Dry).
- Dampen a cotton towel with approximately 1 cup of water, squeeze out excess, and place it in the drum.
- Close the door and press the start button—the dryer should begin the cycle normally.
- Allow the cycle to run for 5-7 minutes, then open the door and check that the estimated time remaining has adjusted from its initial setting, confirming the moisture sensor is reading the damp fabric.
- Press stop/cancel, remove the towel, and verify the sensor bars are not damaged or bent.
🧪
🔧 Step 11: Run test cycle with damp clothes to verify
- Close the dryer door firmly until you hear it latch click into place.
- Dampen 3-4 bath towels or similar cotton items with approximately 1 cup of water per towel, wringing them out so they’re wet but not dripping.
- Place the damp towels into the drum, spreading them evenly rather than bunching them together.
- Press the power button located at the top center of the control panel—the display screen will illuminate.
- Rotate the cycle selector knob clockwise 3 clicks to reach the “Normal Dry” setting—you’ll see “Normal Dry” appear on the digital display.
- Press the “Dryness Level” button once to select “More Dry”—the corresponding LED indicator will light up on the right side of the control panel.
- Press the “Start/Pause” button (green button on the far right of the control panel)—you’ll hear the drum motor engage within 2-3 seconds.
- Verify the drum rotates smoothly in both directions (it will reverse every 20-30 seconds) by watching through the door glass.
- Place your hand near the door glass after 2 minutes of operation—you should feel warmth indicating the heating element is functioning.
- Listen for any unusual grinding, squealing, or thumping sounds during the first 5 minutes—normal operation produces only a low hum and gentle tumbling sound.
- Allow the cycle to run for 10 minutes, then press “Start/Pause” to stop the cycle.
- Open the door and check one towel—it should feel warm to the touch and noticeably drier than when loaded.
- Restart the cycle by pressing “Start/Pause” again and let it complete the full cycle (approximately 35-45 minutes).
- When the cycle ends, the display will show “End” and a chime will sound 3 times—the towels should be completely dry with no damp spots.
đź›’ Recommended Products
âś… Step 6: Access service mode if available (consult manual for method)
- Locate the control panel at the top front of the dryer, which displays the cycle settings and digital readout.
- Press and hold the “Options” button (located on the right side of the control panel, third button from the right) and the “Start/Pause” button (rightmost button) simultaneously for 3 seconds.
- Release both buttons when you hear a single beep and see the display change to show “t01” or “t:01” on the screen.
- Press the “Options” button repeatedly to cycle through diagnostic codes, which appear as “t01” through “t16” on the display.
- Observe the following key diagnostic codes:
- Press “Start/Pause” to activate the currently displayed test, which will run for approximately 10-30 seconds depending on the test selected.
- Watch the display for error codes that appear as “E” followed by two digits (such as “E64” for heating element failure or “E56” for moisture sensor issues).
- Write down any error codes displayed, as these indicate specific component failures requiring attention.
- Exit service mode by pressing and holding both “Options” and “Start/Pause” buttons simultaneously for 3 seconds, or by unplugging the dryer for 10 seconds then plugging it back in.
- Verify successful exit when the display returns to the normal standby screen showing “Push to Start” or the standard cycle display.
🧪
🔍 Step 7: Test sensor resistance with multimeter
- Set your digital multimeter to the resistance (ohms/Ω) setting at the 20k ohm range.
- Locate the moisture sensor wires you disconnected in the previous step—these are two white wires with push-on connectors, positioned at the front right corner of the drum opening, approximately 3 inches below the lint filter housing.
- Touch the red multimeter probe to the metal terminal on one of the disconnected sensor wires.
- Touch the black multimeter probe to the metal terminal on the other disconnected sensor wire.
- Read the resistance value on the multimeter display—you should see a reading between 40,000 and 60,000 ohms (40k-60k Ω) at room temperature with dry sensor bars.
- Wet your fingertip with tap water and simultaneously touch both metal sensor bars inside the drum (these are two vertical chrome strips, each 4 inches long, located on the rear drum wall, spaced 2.5 inches apart).
- Keep your wet finger bridging both sensor bars and observe the multimeter reading drop to between 10,000 and 30,000 ohms (10k-30k Ω).
- Remove your finger and dry the sensor bars with a cloth—the resistance reading should climb back up to the 40,000-60,000 ohm range within 30 seconds.
- If readings fall outside these ranges, or if the reading shows “OL” (over limit/infinite resistance), the moisture sensor is faulty and requires replacement with part number 137353510.
- If readings are within the acceptable ranges, the moisture sensor is functioning correctly—the issue lies elsewhere in the dryer’s control system.
- Write down your test results for reference: dry resistance reading and wet resistance reading.
🧪
đź’ˇ Step 8: Sensor should show resistance change when wet vs dry
- Locate your digital multimeter and turn the dial to the resistance (Ω) setting, selecting the 20K or 200K ohm range.
- Touch the two multimeter probes together to verify the meter reads “0” or near zero, confirming the meter is functioning properly.
- Identify the two metal sensor bars mounted on the drum’s rear interior wall, positioned approximately 8 inches apart horizontally and 4 inches above the lint filter housing.
- Place one multimeter probe on the left sensor bar and the other probe on the right sensor bar, making firm contact with the bare metal surface of each bar.
- Record the resistance reading displayed on the multimeter screen – a properly functioning dry sensor should read between 1.5 megohms (1,500K ohms) and infinity (displayed as “OL” or “1” on most meters).
- Fill a spray bottle with clean tap water and mist both sensor bars until they are visibly wet with water droplets covering the metal surfaces.
- Place the multimeter probes back on the wet sensor bars in the same positions, maintaining firm contact.
- Observe the resistance reading drop dramatically – a functioning sensor will show between 100K ohms and 500K ohms when wet, at least a 75% reduction from the dry reading.
- Use a clean, dry cloth to wipe both sensor bars completely dry, removing all water droplets.
- Test the dry sensors again with the multimeter probes – the resistance should return to the original high reading above 1.5 megohms within 30 seconds of drying.
- If readings remain below 800K ohms when dry, or show no change between wet and dry (less than 50% variation), the sensor bars require cleaning with fine-grit sandpaper (220-grit) or replacement (part number 5303937140).
âś…
⚡ Step 9: If sensor doesn’t respond, replace sensor assembly
- Order replacement moisture sensor assembly part number 137035800 or 5303937189 (both compatible with EFME627UTT).
- Verify your new sensor matches the old one: it should be a white plastic bar approximately 10 inches long with two metal sensing strips running its length and a 2-wire connector at one end with white and gray wires.
- Locate the existing sensor mounted horizontally inside the dryer drum, positioned at the front bottom edge, approximately 2 inches from the right side when facing the open door.
- Use a 1/4-inch nut driver to remove the single mounting screw securing the sensor bracket to the drum front panel.
- Slide the sensor forward 1 inch to disengage it from the metal retaining tab on the left side.
- Disconnect the 2-wire connector by pressing the locking tab on top while pulling the connector apart.
- Remove the old sensor assembly completely from the drum.
- Insert the new sensor into the mounting location, aligning the left edge with the metal retaining tab.
- Slide the sensor to the left until it clicks into place under the retaining tab.
- Align the single screw hole on the right bracket with the threaded hole in the drum panel.
- Insert and tighten the 1/4-inch mounting screw using the nut driver until snug (approximately 8-10 inch-pounds of pressure).
- Reconnect the 2-wire connector by pushing both halves together until you hear and feel a distinct click, indicating the locking tab has engaged.
- Test the installation by running your fingernail across both metal sensing strips—they should feel flush with the white plastic housing, not raised or loose.
- Proceed to Step 10 to reassemble the dryer and test sensor functionality.
🧪
🎯 Step 10: Reinstall sensor and test moisture detection
- Hold the moisture sensor assembly with the two metal sensor bars facing toward the drum interior and the wire connector pointing toward the rear of the dryer cabinet.
- Align the sensor’s mounting bracket with the two screw holes located on the lint filter housing, approximately 3 inches below the lint screen opening on the right side.
- Insert the two 1/4-inch hex head screws (part number 134413500) through the mounting bracket holes and thread them into the housing by hand.
- Tighten both screws using a 1/4-inch nut driver, turning clockwise 3-4 full rotations until the sensor bracket sits flush against the housing with no gaps visible.
- Locate the white 2-pin connector attached to the sensor’s wire leads (approximately 6 inches of wire length from the sensor body).
- Find the matching white female connector coming from the dryer’s main wire harness, positioned 8-10 inches behind the lint filter housing near the blower assembly.
- Push the two connectors together firmly until you hear and feel a distinct click, indicating the locking tab has engaged.
- Verify the connection by gently pulling on both sides of the connector—it should not separate with moderate force.
- Plug the dryer power cord into the wall outlet and turn on the circuit breaker.
- Press the control panel power button and select any automatic dry cycle (Sensor Dry or Auto Dry).
- Dampen a cotton towel with approximately 1 cup of water, squeeze out excess, and place it in the drum.
- Close the door and press the start button—the dryer should begin the cycle normally.
- Allow the cycle to run for 5-7 minutes, then open the door and check that the estimated time remaining has adjusted from its initial setting, confirming the moisture sensor is reading the damp fabric.
- Press stop/cancel, remove the towel, and verify the sensor bars are not damaged or bent.
🧪
🔧 Step 11: Run test cycle with damp clothes to verify
- Close the dryer door firmly until you hear it latch click into place.
- Dampen 3-4 bath towels or similar cotton items with approximately 1 cup of water per towel, wringing them out so they’re wet but not dripping.
- Place the damp towels into the drum, spreading them evenly rather than bunching them together.
- Press the power button located at the top center of the control panel—the display screen will illuminate.
- Rotate the cycle selector knob clockwise 3 clicks to reach the “Normal Dry” setting—you’ll see “Normal Dry” appear on the digital display.
- Press the “Dryness Level” button once to select “More Dry”—the corresponding LED indicator will light up on the right side of the control panel.
- Press the “Start/Pause” button (green button on the far right of the control panel)—you’ll hear the drum motor engage within 2-3 seconds.
- Verify the drum rotates smoothly in both directions (it will reverse every 20-30 seconds) by watching through the door glass.
- Place your hand near the door glass after 2 minutes of operation—you should feel warmth indicating the heating element is functioning.
- Listen for any unusual grinding, squealing, or thumping sounds during the first 5 minutes—normal operation produces only a low hum and gentle tumbling sound.
- Allow the cycle to run for 10 minutes, then press “Start/Pause” to stop the cycle.
- Open the door and check one towel—it should feel warm to the touch and noticeably drier than when loaded.
- Restart the cycle by pressing “Start/Pause” again and let it complete the full cycle (approximately 35-45 minutes).
- When the cycle ends, the display will show “End” and a chime will sound 3 times—the towels should be completely dry with no damp spots.
đź›’ Recommended Products
đź’ˇ Step 8: Sensor should show resistance change when wet vs dry
- Locate your digital multimeter and turn the dial to the resistance (Ω) setting, selecting the 20K or 200K ohm range.
- Touch the two multimeter probes together to verify the meter reads “0” or near zero, confirming the meter is functioning properly.
- Identify the two metal sensor bars mounted on the drum’s rear interior wall, positioned approximately 8 inches apart horizontally and 4 inches above the lint filter housing.
- Place one multimeter probe on the left sensor bar and the other probe on the right sensor bar, making firm contact with the bare metal surface of each bar.
- Record the resistance reading displayed on the multimeter screen – a properly functioning dry sensor should read between 1.5 megohms (1,500K ohms) and infinity (displayed as “OL” or “1” on most meters).
- Fill a spray bottle with clean tap water and mist both sensor bars until they are visibly wet with water droplets covering the metal surfaces.
- Place the multimeter probes back on the wet sensor bars in the same positions, maintaining firm contact.
- Observe the resistance reading drop dramatically – a functioning sensor will show between 100K ohms and 500K ohms when wet, at least a 75% reduction from the dry reading.
- Use a clean, dry cloth to wipe both sensor bars completely dry, removing all water droplets.
- Test the dry sensors again with the multimeter probes – the resistance should return to the original high reading above 1.5 megohms within 30 seconds of drying.
- If readings remain below 800K ohms when dry, or show no change between wet and dry (less than 50% variation), the sensor bars require cleaning with fine-grit sandpaper (220-grit) or replacement (part number 5303937140).
âś…
⚡ Step 9: If sensor doesn’t respond, replace sensor assembly
- Order replacement moisture sensor assembly part number 137035800 or 5303937189 (both compatible with EFME627UTT).
- Verify your new sensor matches the old one: it should be a white plastic bar approximately 10 inches long with two metal sensing strips running its length and a 2-wire connector at one end with white and gray wires.
- Locate the existing sensor mounted horizontally inside the dryer drum, positioned at the front bottom edge, approximately 2 inches from the right side when facing the open door.
- Use a 1/4-inch nut driver to remove the single mounting screw securing the sensor bracket to the drum front panel.
- Slide the sensor forward 1 inch to disengage it from the metal retaining tab on the left side.
- Disconnect the 2-wire connector by pressing the locking tab on top while pulling the connector apart.
- Remove the old sensor assembly completely from the drum.
- Insert the new sensor into the mounting location, aligning the left edge with the metal retaining tab.
- Slide the sensor to the left until it clicks into place under the retaining tab.
- Align the single screw hole on the right bracket with the threaded hole in the drum panel.
- Insert and tighten the 1/4-inch mounting screw using the nut driver until snug (approximately 8-10 inch-pounds of pressure).
- Reconnect the 2-wire connector by pushing both halves together until you hear and feel a distinct click, indicating the locking tab has engaged.
- Test the installation by running your fingernail across both metal sensing strips—they should feel flush with the white plastic housing, not raised or loose.
- Proceed to Step 10 to reassemble the dryer and test sensor functionality.
🧪
🎯 Step 10: Reinstall sensor and test moisture detection
- Hold the moisture sensor assembly with the two metal sensor bars facing toward the drum interior and the wire connector pointing toward the rear of the dryer cabinet.
- Align the sensor’s mounting bracket with the two screw holes located on the lint filter housing, approximately 3 inches below the lint screen opening on the right side.
- Insert the two 1/4-inch hex head screws (part number 134413500) through the mounting bracket holes and thread them into the housing by hand.
- Tighten both screws using a 1/4-inch nut driver, turning clockwise 3-4 full rotations until the sensor bracket sits flush against the housing with no gaps visible.
- Locate the white 2-pin connector attached to the sensor’s wire leads (approximately 6 inches of wire length from the sensor body).
- Find the matching white female connector coming from the dryer’s main wire harness, positioned 8-10 inches behind the lint filter housing near the blower assembly.
- Push the two connectors together firmly until you hear and feel a distinct click, indicating the locking tab has engaged.
- Verify the connection by gently pulling on both sides of the connector—it should not separate with moderate force.
- Plug the dryer power cord into the wall outlet and turn on the circuit breaker.
- Press the control panel power button and select any automatic dry cycle (Sensor Dry or Auto Dry).
- Dampen a cotton towel with approximately 1 cup of water, squeeze out excess, and place it in the drum.
- Close the door and press the start button—the dryer should begin the cycle normally.
- Allow the cycle to run for 5-7 minutes, then open the door and check that the estimated time remaining has adjusted from its initial setting, confirming the moisture sensor is reading the damp fabric.
- Press stop/cancel, remove the towel, and verify the sensor bars are not damaged or bent.
🧪
🔧 Step 11: Run test cycle with damp clothes to verify
- Close the dryer door firmly until you hear it latch click into place.
- Dampen 3-4 bath towels or similar cotton items with approximately 1 cup of water per towel, wringing them out so they’re wet but not dripping.
- Place the damp towels into the drum, spreading them evenly rather than bunching them together.
- Press the power button located at the top center of the control panel—the display screen will illuminate.
- Rotate the cycle selector knob clockwise 3 clicks to reach the “Normal Dry” setting—you’ll see “Normal Dry” appear on the digital display.
- Press the “Dryness Level” button once to select “More Dry”—the corresponding LED indicator will light up on the right side of the control panel.
- Press the “Start/Pause” button (green button on the far right of the control panel)—you’ll hear the drum motor engage within 2-3 seconds.
- Verify the drum rotates smoothly in both directions (it will reverse every 20-30 seconds) by watching through the door glass.
- Place your hand near the door glass after 2 minutes of operation—you should feel warmth indicating the heating element is functioning.
- Listen for any unusual grinding, squealing, or thumping sounds during the first 5 minutes—normal operation produces only a low hum and gentle tumbling sound.
- Allow the cycle to run for 10 minutes, then press “Start/Pause” to stop the cycle.
- Open the door and check one towel—it should feel warm to the touch and noticeably drier than when loaded.
- Restart the cycle by pressing “Start/Pause” again and let it complete the full cycle (approximately 35-45 minutes).
- When the cycle ends, the display will show “End” and a chime will sound 3 times—the towels should be completely dry with no damp spots.
đź›’ Recommended Products
🎯 Step 10: Reinstall sensor and test moisture detection
- Hold the moisture sensor assembly with the two metal sensor bars facing toward the drum interior and the wire connector pointing toward the rear of the dryer cabinet.
- Align the sensor’s mounting bracket with the two screw holes located on the lint filter housing, approximately 3 inches below the lint screen opening on the right side.
- Insert the two 1/4-inch hex head screws (part number 134413500) through the mounting bracket holes and thread them into the housing by hand.
- Tighten both screws using a 1/4-inch nut driver, turning clockwise 3-4 full rotations until the sensor bracket sits flush against the housing with no gaps visible.
- Locate the white 2-pin connector attached to the sensor’s wire leads (approximately 6 inches of wire length from the sensor body).
- Find the matching white female connector coming from the dryer’s main wire harness, positioned 8-10 inches behind the lint filter housing near the blower assembly.
- Push the two connectors together firmly until you hear and feel a distinct click, indicating the locking tab has engaged.
- Verify the connection by gently pulling on both sides of the connector—it should not separate with moderate force.
- Plug the dryer power cord into the wall outlet and turn on the circuit breaker.
- Press the control panel power button and select any automatic dry cycle (Sensor Dry or Auto Dry).
- Dampen a cotton towel with approximately 1 cup of water, squeeze out excess, and place it in the drum.
- Close the door and press the start button—the dryer should begin the cycle normally.
- Allow the cycle to run for 5-7 minutes, then open the door and check that the estimated time remaining has adjusted from its initial setting, confirming the moisture sensor is reading the damp fabric.
- Press stop/cancel, remove the towel, and verify the sensor bars are not damaged or bent.
🧪
🔧 Step 11: Run test cycle with damp clothes to verify
- Close the dryer door firmly until you hear it latch click into place.
- Dampen 3-4 bath towels or similar cotton items with approximately 1 cup of water per towel, wringing them out so they’re wet but not dripping.
- Place the damp towels into the drum, spreading them evenly rather than bunching them together.
- Press the power button located at the top center of the control panel—the display screen will illuminate.
- Rotate the cycle selector knob clockwise 3 clicks to reach the “Normal Dry” setting—you’ll see “Normal Dry” appear on the digital display.
- Press the “Dryness Level” button once to select “More Dry”—the corresponding LED indicator will light up on the right side of the control panel.
- Press the “Start/Pause” button (green button on the far right of the control panel)—you’ll hear the drum motor engage within 2-3 seconds.
- Verify the drum rotates smoothly in both directions (it will reverse every 20-30 seconds) by watching through the door glass.
- Place your hand near the door glass after 2 minutes of operation—you should feel warmth indicating the heating element is functioning.
- Listen for any unusual grinding, squealing, or thumping sounds during the first 5 minutes—normal operation produces only a low hum and gentle tumbling sound.
- Allow the cycle to run for 10 minutes, then press “Start/Pause” to stop the cycle.
- Open the door and check one towel—it should feel warm to the touch and noticeably drier than when loaded.
- Restart the cycle by pressing “Start/Pause” again and let it complete the full cycle (approximately 35-45 minutes).
- When the cycle ends, the display will show “End” and a chime will sound 3 times—the towels should be completely dry with no damp spots.
đź›’ Recommended Products
Here are the recommended products for this repair:
- (2 Pack) Rayhoor 6500EL3001A Dryer Moisture Sensor Bar Replacement Part Fit for LG Kenmore – Replaces PD00001914, 1268224, AP4445128, EAP3529161
As an Amazon Associate, I earn from qualifying purchases.