Samsung DVE45R6100C (Electric) / DVG45R6100C (Gas) – Moisture sensor malfunction Repair Guide

🔩 Moisture sensor malfunction Repair Guide for Samsung DVE45R6100C (Electric) / DVG45R6100C (Gas)

💡 Don’t panic! Moisture sensor malfunction on your Samsung DVE45R6100C (Electric) / DVG45R6100C (Gas) 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!

đź”§ 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

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đź”§ Step 1: Unplug dryer and remove front panel

  1. Locate the power cord at the rear of the dryer, approximately 12 inches from the floor on the lower back panel.
  2. Grasp the plug (not the cord) and pull straight out from the wall outlet with firm, steady pressure until completely disconnected.
  3. Pull the dryer forward 24-36 inches from the wall to create working space around all sides.
  4. Open the dryer door fully to access the interior door opening area.
  5. Locate 2 Phillips-head screws inside the door opening—one on the left side and one on the right side, positioned approximately 3 inches down from the top edge of the opening.
  6. Remove both screws using a Phillips #2 screwdriver, turning counterclockwise, and set them aside in a container.
  7. Close the dryer door.
  8. Locate the top panel seam where it meets the front panel at the upper front edge of the dryer.
  9. Insert a flat putty knife or thin flathead screwdriver into the seam at the front left corner, approximately 2 inches from the left edge.
  10. Apply upward pressure to release the spring clip holding the top panel.
  11. Repeat this process on the right side, approximately 2 inches from the right edge.
  12. Lift the top panel upward and tilt it back against the wall behind the dryer—it will rest in an open position.
  13. With the top panel raised, locate 2 additional Phillips-head screws at the upper corners of the front panel (one left, one right), positioned approximately 1 inch from each side edge.
  14. Remove these 2 screws using the Phillips #2 screwdriver.
  15. Lift the front panel up approximately 1 inch to disengage the bottom mounting tabs, then pull the panel forward and away from the dryer cabinet.
  16. Set the front panel aside in a safe location where it won’t be damaged.

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🛠️ Step 2: Locate moisture sensor bars inside the drum (usually on front or back)

  1. Open the dryer door fully and prop it against the wall or secure it in the open position to prevent it from swinging closed while you work.
  2. Reach inside the drum with both hands and locate the lint filter housing at the top front of the drum opening.
  3. Look directly below the lint filter housing, on the back wall of the drum interior, approximately 8-10 inches down from the top edge of the drum.
  4. Identify two parallel metal bars running horizontally across the drum’s back wall – these are the moisture sensor bars, measuring approximately 3-4 inches long each and spaced about 1 inch apart vertically.
  5. Run your finger across these bars to confirm they are metal strips that protrude slightly (approximately 1/8 inch) from the drum surface – they will feel smooth and metallic, unlike the painted drum surface.
  6. Note that the top bar is positioned approximately 8 inches below the lint filter opening, and the bottom bar sits 1 inch directly below the top bar.
  7. Observe the white or gray plastic housing that holds both sensor bars in place – this rectangular mount measures approximately 4 inches wide by 2 inches tall.
  8. Check for any visible buildup of fabric softener residue, lint, or mineral deposits on the sensor bars by running your fingertip along their length – you’re looking for a shiny, smooth metal surface that indicates proper sensor function.
  9. Verify you’ve found the correct components by confirming both bars are identical in length, parallel to each other, and located on the drum’s back wall rather than on the door or front rim.
  10. Make a mental note of the sensor location for the upcoming cleaning or replacement procedure – back wall, center position, below the lint filter housing.

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⚙️ Step 3: Clean sensor bars thoroughly with rubbing alcohol and lint-free cloth

  1. Locate the two moisture sensor bars inside the drum—they are metal strips positioned on the back wall of the drum, running vertically, approximately 3 inches apart from each other and centered left-to-right
  2. Pour 91% isopropyl rubbing alcohol onto a white lint-free cloth (microfiber or cotton terry cloth) until the cloth is damp but not dripping
  3. Press the damp cloth firmly against the left sensor bar and wipe from top to bottom in one smooth motion, applying moderate pressure (similar to cleaning a window)
  4. Rotate the cloth to a clean section and repeat the wiping motion 2-3 more times on the same sensor bar until no gray or brown residue appears on the cloth
  5. Flip to a completely clean section of the cloth, apply more rubbing alcohol, and repeat the same wiping process on the right sensor bar
  6. Examine both sensor bars under the drum light—they should appear shiny and metallic silver with no visible film, white buildup, or fabric softener residue
  7. Run your fingertip along each sensor bar surface—it should feel smooth like bare metal, not slippery or waxy
  8. If any residue remains visible or the surface feels coated, pour fresh rubbing alcohol on a new clean section of cloth and repeat the cleaning process until both bars pass the visual and touch inspection
  9. Allow the sensor bars to air-dry for 2-3 minutes—the alcohol will evaporate completely, leaving no moisture behind
  10. Run your dry finger across each sensor bar one final time to verify they feel completely smooth and dry with no tackiness

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🔩 Step 4: Test sensor resistance with multimeter – should read between 0-10kΩ when dry

  1. Set your digital multimeter to the resistance (Ω) setting at the 20kΩ range by rotating the dial to the “20K” position in the ohms section.
  2. Touch the two multimeter probe tips together and verify the display reads “0” or very close to zero—this confirms your meter is working correctly.
  3. Locate the two metal terminals on the moisture sensor where you disconnected the white wire connector in the previous step—these terminals are approximately 0.5 inches apart and have a flat, silver appearance.
  4. Place the red multimeter probe tip firmly against the left sensor terminal and the black probe tip against the right sensor terminal—probe placement order doesn’t matter for resistance testing.
  5. Read the display value on your multimeter—a properly functioning dry moisture sensor will show between 0.5kΩ and 10kΩ (displayed as 0.5 to 10.0 on your meter).
  6. If the display shows “OL” or “1” (open loop), the sensor has failed due to an open circuit and requires replacement with Samsung part number DC96-00152A.
  7. If the display shows a value above 10kΩ, the sensor has excessive resistance from corrosion or damage and requires replacement.
  8. If the reading is within the 0-10kΩ range, remove both probes and inspect the sensor surface for any white residue, fabric softener buildup, or visible corrosion—these can cause intermittent failures even if resistance tests normal.
  9. Write down your exact resistance reading on paper for comparison after cleaning or to provide to a parts supplier if ordering a replacement.
  10. If your reading was between 0-10kΩ, the sensor passed the electrical test and you’ll proceed to cleaning in the next step.

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đź“‹ Step 5: If resistance is out of range or shows open circuit, sensor needs replacement

  1. Locate the moisture sensor replacement part number DC32-00007A (also compatible: DC32-00007B) which is the correct sensor assembly for the Samsung DVE45R6100C.
  2. Power off the dryer at the circuit breaker and unplug the power cord from the wall outlet.
  3. Pull the lint filter completely out of its housing at the top front of the dryer drum opening.
  4. Use a Phillips-head screwdriver #2 to remove the 2 screws securing the lint filter housing – one screw is located on the left side of the housing, one on the right side, each positioned approximately 1 inch down from the top edge.
  5. Lift the lint filter housing straight up and set it aside.
  6. Reach into the drum opening and locate the moisture sensor bar mounted on the inside front panel, positioned horizontally approximately 3 inches below the lint filter opening.
  7. Disconnect the 2-wire connector attached to the sensor by gripping the white plastic connector body (not the wires) and pulling straight back toward the front of the dryer until it releases.
  8. Use a 1/4-inch nut driver or socket to remove the 2 mounting screws holding the sensor bar in place – one screw on each end of the bar.
  9. Remove the old sensor bar by pulling it straight forward out of the mounting slots.
  10. Insert the new sensor bar into the same mounting slots, ensuring the metal sensor strips face toward the inside of the drum.
  11. Install the 2 mounting screws and tighten until snug – approximately 8-10 inch-pounds of torque (hand-tight plus 1/4 turn).
  12. Reconnect the 2-wire connector to the new sensor by pushing it firmly onto the sensor terminals until you hear a click.
  13. Reinstall the lint filter housing and secure it with the 2 Phillips-head screws.
  14. Insert the lint filter back into its housing.

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âś… Step 6: Remove old sensor bars and disconnect wiring

  1. Locate the moisture sensor bars on the drum’s inner front surface, positioned at approximately 2 o’clock and 10 o’clock when viewing the drum opening straight-on. These are two metal strips, each measuring approximately 3 inches long and 1/4 inch wide.
  2. Reach behind the drum front panel where you previously removed the front bulkhead assembly in Step 5. Locate the wire harness connector attached to the sensor bars, positioned approximately 4 inches below the drum opening on the right side.
  3. Identify the white plastic connector housing with two wires (typically one white and one gray wire) leading to each sensor bar.
  4. Press the release tab on the connector housing using your thumb while pulling the connector straight away from the terminal block. The tab is located on the top side of the connector and requires approximately 5 pounds of pressure to release.
  5. Once disconnected, trace the wires back to where they attach to the sensor bars themselves, located on the drum’s interior metal rim.
  6. Use a 1/4-inch nut driver to remove the single mounting screw securing each sensor bar to the drum. Turn counterclockwise 3-4 full rotations until each screw is completely removed.
  7. Grip each metal sensor bar at its center point and pull straight outward from the drum surface. Each bar is held by the single screw plus a metal clip underneath that slides forward when you pull.
  8. Slide each sensor bar forward (toward the drum opening) approximately 1/2 inch to disengage it from the retaining slot, then lift it away from the drum completely.
  9. Set aside the old sensor bars and their mounting screws in your parts container. The drum interior should now show two empty mounting holes where the sensors were attached.

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🔍 Step 7: Install new moisture sensor assembly

  1. Position the new moisture sensor assembly (part number DC97-15805A) inside the drum cavity with the two metal sensing bars facing upward into the drum interior.
  2. Align the sensor’s two mounting tabs with the corresponding slots in the drum’s lower front panel, approximately 3 inches from the front lip and centered horizontally.
  3. Push the sensor assembly upward into the mounting slots until you hear a distinct snap, indicating the tabs have locked into place.
  4. Locate the white 2-pin wire connector attached to the sensor assembly harness, measuring approximately 4 inches long.
  5. Route this connector through the metal support bracket opening on the right side of the drum assembly.
  6. Hold the wire connector with the locking tab facing upward and the ridged side facing you.
  7. Align the connector with the matching white 2-pin receptacle on the main wiring harness, located 8 inches below the drum opening on the right interior cabinet wall.
  8. Push the connector straight into the receptacle until you hear and feel a click—the connection should be flush with no gap visible between connector housings.
  9. Tug gently on the wire harness to verify the connection is secure; it should not separate.
  10. Press the two metal sensing bars with your finger to verify they flex slightly (approximately 1/8 inch of movement) and spring back into position—this confirms proper installation.
  11. Visually inspect that no portion of the wire harness crosses the drum’s rotation path or interferes with the drive belt visible at the rear of the drum.
  12. Run your hand along the entire wire harness length to verify no pinch points exist between the drum and cabinet wall—the wire should have 1/4 inch clearance minimum.

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đź’ˇ Step 8: Reassemble dryer and test moisture detection

  1. Route the drum sensor wire harness along the right interior wall, tucking it into the metal channel that runs vertically 2 inches from the front edge of the cabinet opening.
  2. Reconnect the drum sensor 2-pin white connector to the main control board connector located on the rear panel, 8 inches down from the top edge and 4 inches from the right side – push until you hear an audible click.
  3. Position the front drum support bearing onto the drum shaft, aligning the circular opening with the protruding shaft at the front center of the drum.
  4. Lift the drum assembly and slide it back into the cabinet, ensuring the rear of the drum seats properly on the rear support rollers.
  5. Reattach the drum belt around the motor pulley and idler pulley in the lower right compartment, wrapping it around the bottom third of the drum with the ribbed side against the drum.
  6. Reinstall the front panel by hooking the two bottom tabs into the slots at the base, then pushing the top edge until all 6 clips snap into place along the perimeter.
  7. Reattach the toe panel using the Phillips-head screwdriver #2 to install the 4 screws – 2 at the bottom left and 2 at the bottom right, approximately 3 inches from each corner.
  8. Restore electrical power at the circuit breaker.
  9. Open the dryer door and use a spray bottle to lightly mist water across both moisture sensor bars (the two parallel metal strips on the interior back wall, each 4 inches long).
  10. Close the door, select “Sensor Dry Normal” cycle, and press Start.
  11. After 30 seconds, open the door – the drum should stop rotating and the display should show remaining time has decreased, confirming the sensors detected moisture and adjusted cycle time accordingly.

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⚡ Step 9: Run a test cycle with damp clothes to verify proper operation

  1. Take 4-6 medium-sized cotton towels and saturate them completely under running water in your sink or bathtub.
  2. Wring out each towel by twisting firmly until water stops streaming out but the towels remain noticeably damp (they should feel heavy and wet to the touch).
  3. Open the dryer door by pulling the handle located at the center-top of the door opening.
  4. Place all damp towels into the drum, distributing them evenly around the interior rather than bunching them together on one side.
  5. Close the door firmly until you hear a distinct click, confirming the door latch has engaged with the striker plate on the cabinet frame.
  6. Rotate the cycle selector dial on the control panel (located at the top-right of the dryer front) to the “Normal” setting, which is typically positioned at the 12 o’clock position.
  7. Press the “Temp” button (second button from left on the control panel) until “Medium” appears on the display screen.
  8. Press the large “Start/Pause” button on the far right of the control panel to begin the cycle.
  9. Listen for the blower motor to start within 2-3 seconds, producing a steady humming sound at approximately 60 decibels.
  10. Verify hot air is flowing by placing your hand near the open lint filter housing area (top-front of dryer) after 60 seconds of operation—you should feel warm air movement.
  11. Let the dryer run for 10 minutes, then press “Start/Pause” to stop the cycle temporarily.
  12. Open the door and touch the towels—they should feel warm (approximately 120-140°F) and noticeably drier than when you started.
  13. Check that the drum rotates smoothly without scraping, grinding, or squealing sounds during operation.
  14. Press “Start/Pause” again and allow the complete cycle to finish, which takes approximately 40-50 minutes for this load size.

đź›’ Recommended Products

Here are the recommended products for this repair: