Dishwasher displays F4; unit may not drain or may stop with water remaining in the tub.

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

Clogged drain hose, Blocked air gap, Obstructed sump or drain pump, Failed drain pump motor

Safety: Turn off power and water before servicing.

Steps:

1. Clear standing water: Remove water from the tub with a cup or wet/dry vacuum.
2. Clean filters and sump: Remove and rinse filters; inspect sump for debris.
3. Check drain hose and air gap: Ensure hose is not kinked and air gap (if present) is clear.
4. Inspect drain pump: Access the pump from the bottom, check for obstructions, and test for proper operation.

If F4 remains after clearing blockages, replace the drain pump assembly.

Medium 3/5

Drain Pump Assembly

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