E23
Grundig Drain Pump Electrical Failure

Dishwasher displays E23 and will not drain; drain pump may be silent.

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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

Burnt-out drain pump motor, Loose or corroded pump connector, Broken wiring harness to pump, Faulty control board pump relay

How to Fix / Troubleshooting

Safety first: Disconnect power and be prepared for water in the tub and base.

  • Manual draining: Remove as much water as possible from the tub with a container or sponge.
  • Access drain pump: Lay the dishwasher on its back and remove the base cover. Locate the drain pump.
  • Check connector and wiring: Ensure the pump connector is firmly attached and wires are intact. Repair any damaged wiring.
  • Electrical test: With a multimeter, measure the pump winding resistance. An open circuit indicates a failed pump that must be replaced.
  • Control board check: If the pump tests good but never receives voltage during a drain command, the control board or relay may be faulty and require replacement.
  • Replace pump if necessary: Twist and remove the pump from the sump, transfer any seals, and install a new Grundig-compatible drain pump.
  • Reassemble and test: Refit the base, restore power and water, and run a drain program to confirm that E23 is cleared.
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Repair Difficulty

Hard 4/5

Required Part

Drain Pump
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