E23
Gaggenau
Drain Pump Electrical Failure
Dishwasher displays E23 and will not drain; the drain pump may be silent.
Advertisements
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.
Advertisements
Possible Causes
Burned-out drain pump motor, wiring harness fault, control board output failure to the pump.
How to Fix / Troubleshooting
Safety: Disconnect power and be prepared for water spillage.
Steps:
- Check for power to pump: During the drain cycle, measure voltage at the pump connector (only if qualified). If voltage is present but the pump does not run, the pump is faulty.
- Test pump resistance: With power off, measure resistance across the pump terminals. An open circuit indicates a failed motor.
- Inspect wiring: Check the wiring harness from the control board to the pump for breaks or burns.
- Replace drain pump: Install a new Gaggenau drain pump if the original is defective.
- Control check: If no voltage is supplied to a known-good pump, the control board may be faulty and require replacement.
Advertisements
Repair Difficulty
Hard
4/5
Advertisements