Sharp Wash Motor / Circulation Pump Fault

Dishwasher displays F4 and may stop during wash; sometimes accompanied by unusual motor 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

Seized circulation pump, Blocked impeller, Faulty motor capacitor, Motor winding failure

Safety first: Turn off power and water before accessing the base.

Check for blockages: Remove filters and inspect the sump for objects that could jam the impeller.
Access pump: Remove the base cover and locate the Sharp circulation pump. Check if the impeller turns freely.
Replace pump: If seized or noisy, replace the circulation pump assembly. Ensure all seals are correctly seated.

Hard 4/5

Circulation Pump

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