Dishwasher shows E21, often associated with circulation pump issues.

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.

Possible Causes

Foreign object in circulation pump, Seized pump bearings, Defective circulation motor, Wiring fault to pump

Safety: Disconnect power and close the water tap.

Check spray arms and sump: Ensure spray arms are clean and the sump is free of debris that could reach the pump.
Access circulation pump: Lay the dishwasher on its back and remove the bottom cover. Disconnect the circulation pump from the sump.
Inspect impeller and housing: Remove any foreign objects and check that the impeller rotates smoothly without excessive play.
Test motor: Measure winding resistance and check for signs of overheating. Replace the circulation pump assembly if faulty.

Professional Required 5/5

Circulation Pump Assembly

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