Liebherr Drive Belt / Motor Start Failure

Dryer drum does not turn; motor hums or clicks, or nothing happens when Start is pressed, though lights are on.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Broken or slipped drive belt, Worn motor start capacitor, Seized drum support rollers or rear bearing, Failed drive motor

How to Fix / Troubleshooting

Safety first: Disconnect mains power before opening the cabinet.

  • Check drum rotation by hand: Open the door and try to rotate the drum. If it is very stiff or jammed, suspect seized rollers or foreign objects.
  • Inspect belt: Remove the top and front panel to view the belt. Replace if broken, frayed, or off the pulleys.
  • Examine rollers and idler: Spin each drum roller and the idler pulley by hand. Replace any that are noisy, rough, or seized.
  • Test motor capacitor: Locate and safely discharge the capacitor, then measure its capacitance. Replace if out of spec.
  • Motor replacement: If the motor hums but will not start even with a good capacitor and free drum, the motor is likely defective and should be replaced.
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Repair Difficulty

Hard 4/5

Required Part

Drive Belt
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