E3
Franke Motor Overheating / Thermal Protector Trip

Franke electronic garbage disposal stops shortly after starting and displays E3 or three blinking LEDs; unit feels very hot to the touch.

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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

Extended heavy grinding load, Blocked ventilation around motor housing, Failing motor windings, Sticking rotor causing high current draw

How to Fix / Troubleshooting

Safety first: Turn OFF the wall switch and circuit breaker before touching the unit.

  • Allow cooling time: Leave the unit powered off for at least 20–30 minutes to allow the internal thermal protector to reset.
  • Check for jams: After cooling, use an Allen key in the bottom shaft socket to ensure the grinding plate spins freely. Remove any debris with tongs from the sink opening.
  • Improve ventilation: Make sure stored items under the sink are not packed tightly around the Franke motor housing. Provide at least a few centimeters of clearance for airflow.
  • Test with light load: Restore power, run cold water, and test the disposal with only soft food waste. If it overheats and stops again within a minute, the motor windings may be failing.
  • Replace motor unit if needed: Persistent E3 errors even with light loads usually indicate a failing Franke disposer motor unit. Replacement of the entire motor/grinding assembly is recommended.
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Repair Difficulty

Medium 3/5

Required Part

Franke disposer motor unit
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