Frigidaire FFTW4120SW (Top Load) – Drive belt broken Repair Guide

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🔩 Drive belt broken Repair Guide for Frigidaire FFTW4120SW (Top Load)

💡 Don’t panic! Drive belt broken on your Frigidaire FFTW4120SW (Top Load) is a common issue that many DIY enthusiasts can fix themselves. This comprehensive guide will walk you through the repair process step by step.

📋 What You’ll Need

  • Drive belt
  • Belt tensioner
  • Motor pulley

    • ⚠️ Safety First

    Before you begin, always:

    • Unplug the washing machine from power
    • Turn off water supply valves
    • Allow the machine to cool down if it was recently running
    • Have a clean, well-lit workspace

      • 🔧 Step-by-Step Repair Instructions

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      🔧 Step 1: Drum won’t turn

      1. Unplug the washer completely from the wall outlet and wait 60 seconds for capacitors to discharge.
      2. Open the washer lid and reach inside the drum with both hands.
      3. Attempt to rotate the drum clockwise by hand using moderate force (approximately 10-15 pounds of pressure).
      4. If the drum rotates freely and smoothly through a complete 360-degree rotation, the mechanical components are likely intact – proceed to electrical testing in later steps.
      5. If the drum feels locked or requires excessive force to move, grasp the agitator cap (the round plastic piece at the center top of the drum, approximately 8 inches in diameter).
      6. Turn the agitator cap counterclockwise while holding the drum steady with your other hand – it should rotate independently of the drum.
      7. If the agitator doesn’t turn independently, a sock or small clothing item may be jammed between the agitator and drum – pull the agitator straight up with firm upward force (20-30 pounds) to remove it and check for obstructions.
      8. With the drum exposed, inspect the center shaft for any visible fabric wrapped around the base.
      9. Attempt drum rotation again after clearing any obstructions.
      10. If the drum still won’t turn, slide your hand around the inside perimeter of the drum, feeling for any hard objects wedged between the drum and outer tub (bra underwires, coins, buttons are common culprits).
      11. Rotate the drum slowly by hand while listening for grinding, scraping, or clicking sounds that indicate foreign object interference.
      12. Note whether resistance is constant throughout rotation or occurs at specific points in the rotation cycle – intermittent resistance indicates a foreign object, while constant resistance suggests a seized bearing or failed drive mechanism.

      🛠️ Step 2: Inspect belt path

      1. Locate the drive belt at the bottom of the washer drum, visible through the opening where you removed the front panel in Step 1.
      2. Position your flashlight to illuminate the belt routing around three pulleys: the motor pulley (bottom left, approximately 8 inches from the floor), the idler pulley (bottom center, 4 inches to the right of motor pulley), and the drum pulley (large wheel attached to the drum bottom).
      3. Trace the belt path starting at the motor pulley—the belt should wrap counterclockwise around the motor pulley, then extend diagonally upward to wrap around the bottom of the drum pulley (making approximately 270 degrees of contact), then route down and around the idler pulley before returning to the motor pulley.
      4. Check for belt misalignment by verifying the belt sits centered on all three pulleys, not riding up on the edges or hanging off to one side.
      5. Press down on the belt between the motor pulley and drum pulley with your index finger—it should deflect approximately 1/2 inch with moderate pressure (about 5 pounds of force), indicating proper tension from the spring-loaded idler pulley.
      6. Examine the belt surface for glazing (shiny, hardened appearance), cracks running perpendicular to the belt length, fraying along the edges, or missing chunks of rubber.
      7. Rotate the drum clockwise by hand one complete revolution while watching the belt—it should remain centered on all pulleys throughout the rotation without slipping, jumping, or wobbling.
      8. Check for black rubber dust or residue accumulated on the cabinet floor beneath the belt path, indicating excessive belt wear or slippage.
      9. Inspect the idler pulley spring (silver coil spring connecting idler arm to frame bracket, located 2 inches behind the idler pulley)—verify it appears stretched and maintains tension, not loose or disconnected.

      Step 1.

    • Position your flashlight to illuminate the belt routing around three pulleys: the motor pulley (bottom left, approximately 8 inches from the floor), the idler pulley (bottom center, 4 inches to the right of motor pulley), and the drum pulley (large wheel attached to the drum bottom).
    • Trace the belt path starting at the motor pulley—the belt should wrap counterclockwise around the motor pulley, then extend diagonally upward to wrap around the bottom of the drum pulley (making approximately 270 degrees of contact), then route down and around the idler pulley before returning to the motor pulley.
    • Check for belt misalignment by verifying the belt sits centered on all three pulleys, not riding up on the edges or hanging off to one side.
    • Press down on the belt between the motor pulley and drum pulley with your index finger—it should deflect approximately 1/2 inch with moderate pressure (about 5 pounds of force), indicating proper tension from the spring-loaded idler pulley.
    • Examine the belt surface for glazing (shiny, hardened appearance), cracks running perpendicular to the belt length, fraying along the edges, or missing chunks of rubber.
    • Rotate the drum clockwise by hand one complete revolution while watching the belt—it should remain centered on all pulleys throughout the rotation without slipping, jumping, or wobbling.
    • Check for black rubber dust or residue accumulated on the cabinet floor beneath the belt path, indicating excessive belt wear or slippage.
    • Inspect the idler pulley spring (silver coil spring connecting idler arm to frame bracket, located 2 inches behind the idler pulley)—verify it appears stretched and maintains tension, not loose or disconnected.

      • ⚙️ Step 3: Check pulleys

      1. Locate the drive motor pulley at the bottom rear of the washer tub, approximately 8 inches from the right side panel and 4 inches above the washer base.
      2. Grip the black plastic motor pulley (approximately 1.5 inches in diameter) with your fingers and attempt to wiggle it side-to-side and up-and-down on the motor shaft.
      3. If the pulley moves more than 1/16 inch in any direction, use a 7/16-inch socket wrench to tighten the single set screw located on the flat side of the pulley hub until the pulley cannot move.
      4. Spin the motor pulley clockwise with your hand—it should rotate smoothly without grinding sounds or resistance.
      5. Move to the drum pulley located directly above the motor pulley, centered under the wash tub at approximately 18 inches from the washer base.
      6. Inspect the drum pulley (approximately 3 inches in diameter, silver metal) for cracks, chips, or visible wear grooves deeper than 1/8 inch on the belt track surface.
      7. Grip the drum pulley and attempt to rock it forward and backward—movement exceeding 1/8 inch indicates worn tub bearings requiring separate repair.
      8. Examine the idler pulley assembly positioned between the motor and drum pulleys, mounted on a spring-loaded arm approximately 10 inches from the right side panel.
      9. Push the idler pulley arm inward toward the motor—the spring tension should provide firm resistance and return the arm to its original position when released.
      10. Spin the idler pulley wheel (approximately 2 inches in diameter, white plastic) with your finger—it should rotate freely for at least 3 full revolutions without squeaking or stopping abruptly.
      11. Check for black rubber dust or belt residue accumulated around any pulley—excessive buildup indicates pulley misalignment or a deteriorating belt requiring replacement.

      🔩 Step 4: Replace belt

      1. Locate the old belt around the motor pulley (silver cylindrical component, approximately 2 inches in diameter, positioned at the bottom rear of the washer tub) and remove any remaining pieces if it broke.
      2. Take your new belt (Frigidaire part number 134511600, a ribbed V-belt approximately 51 inches in circumference) and identify the ribbed inner side – this textured side must face inward toward the pulleys.
      3. Loop the belt around the motor pulley first, positioning it in the grooved channel that runs around the pulley’s center.
      4. While holding the belt on the motor pulley with your left hand, stretch the belt upward and loop it around the drive pulley (the larger white plastic pulley, approximately 4 inches in diameter, located on the bottom of the wash tub directly above the motor).
      5. Rotate the drive pulley clockwise with your right hand while maintaining tension on the belt with your left hand – the belt will walk itself into the grooved channel on the drive pulley after 2-3 full rotations.
      6. Spin the drive pulley 5-6 complete rotations by hand to verify the belt tracks correctly in both pulley grooves without slipping off to either side.
      7. Press down on the belt midway between the two pulleys with moderate finger pressure – the belt should deflect approximately 1/2 inch with firm resistance; if it deflects more than 3/4 inch, the belt is twisted or not fully seated in the pulley grooves.
      8. Visually confirm the ribbed side of the belt contacts both pulleys and the smooth back side faces outward on both pulleys – you’ll see the black ribbed texture against the metal and plastic pulley surfaces.
      9. Rotate the drive pulley clockwise 10 full rotations while watching the belt maintain its position in both grooves without any side-to-side wandering.

      đź“‹ Step 5: Test drive operation

      1. Plug the washing machine power cord into the wall outlet and turn on the water supply valves (both hot and cold) located on the wall behind the unit.
      2. Open the washer lid fully until it stops at approximately 90 degrees from the cabinet top.
      3. Locate the control panel at the top rear of the unit and turn the cycle selector dial clockwise to the “Normal/Casual” setting – you’ll feel 2 clicks as it passes “Heavy Duty.”
      4. Press the “Start/Pause” button once – it’s the largest button on the control panel, located on the right side, approximately 3 inches from the right edge.
      5. Listen for the drive motor to engage – you should hear a low humming sound within 5 seconds, followed by the agitator post beginning to rotate clockwise.
      6. Observe the agitator making 6-8 full rotations in one direction, then reversing for 6-8 rotations in the opposite direction – this back-and-forth motion confirms proper drive coupling engagement.
      7. Watch for water to begin filling the tub through the dispenser at the rear center of the tub within 30 seconds of starting.
      8. Allow the cycle to run for 2 complete minutes while monitoring for:
      9. Press and hold the “Start/Pause” button for 3 seconds to stop the cycle.
      10. Turn the cycle selector dial counterclockwise to “Drain/Spin” and press “Start/Pause” once to verify the drain pump activates – you’ll hear water draining and see the water level dropping within 10 seconds.
      11. Open the lid after water drains completely – the spin cycle will stop automatically when the lid opens, confirming the lid switch functions correctly.

      đź’ˇ Pro Tips

      Take photos as you disassemble components – they’ll be invaluable when putting everything back together. If you encounter resistance or something doesn’t seem right, stop and reassess rather than forcing it.

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