Schulthess Overheating electrical component or drive belt

Washer emits a burning smell or electrical odor during operation.

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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

Slipping drive belt, Foreign object jammed in drum or pump, Overheating motor, Failing control board component

How to Fix / Troubleshooting

Safety first: Immediately stop the cycle, unplug the washer, and do not continue to operate until the source is identified.

  • Step 1 – Visual inspection: Remove the rear panel and inspect the belt, motor, and wiring for signs of melting, discoloration, or smoke residue.
  • Step 2 – Check belt tension: If the belt is loose and shows signs of burning (rubber dust, smell), replace it and ensure correct routing.
  • Step 3 – Inspect pump and drum: Check for objects stuck between drum and tub or in the pump that could overload the motor.
  • Step 4 – Motor and PCB: If the smell originates from the motor or control board, discontinue use and arrange professional service, as continued operation may pose a fire risk.
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Repair Difficulty

Hard 4/5

Required Part

Drive Belt
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