Bauknecht Circulation Pump Jammed or Failed

Dishwasher fills with water but does not wash; spray arms do not move and you hear only a humming noise.

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 impeller, Seized pump bearings, Defective circulation pump motor, Faulty start capacitor (if used)

Safety first: Disconnect power and close the water tap.

Check for obstructions: Remove filters and inspect the sump inlet to the circulation pump. Remove any debris.
Access pump: Lay the dishwasher on its back, remove the bottom panel, and locate the circulation pump. Remove it from the sump and check the impeller for free movement.
Test pump: Measure motor winding resistance. If open or shorted, replace the pump. If stiff to turn, the bearings are likely seized.
Replace pump: Install a new Bauknecht circulation pump assembly and reassemble.

Hard 4/5

Circulation Pump

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