E20
Bertazzoni Circulation Motor Electrical Error

Dishwasher displays E20; motor may not start or may run briefly then stop.

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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

Open or shorted circulation motor windings, Faulty motor capacitor (if used), Loose wiring to motor, Control board triac/relay failure

How to Fix / Troubleshooting

Safety first: Disconnect power before working under the dishwasher.

  • 1. Access circulation motor: Remove the toe-kick and bottom panel to reach the circulation pump motor.
  • 2. Inspect wiring and capacitor: Check all connectors and, if present, the start capacitor for bulging or leakage.
  • 3. Test motor windings: Use a multimeter to measure resistance across the motor terminals. An open circuit indicates a failed motor.
  • 4. Replace motor assembly: If defective, replace the entire circulation pump and motor assembly according to Bertazzoni service procedures.

If the motor tests good, the control board may not be supplying power correctly and should be checked by a professional.

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Repair Difficulty

Professional Required 5/5

Required Part

Circulation Pump Motor
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