Kitchenaid Dishwasher Error F8E4

DIY Fix Inspect and clear drip tray and float switch

1. Turn off power to dishwasher (unplug or breaker).
2. Remove kick plate or access panel at bottom front.
3. Check for water in the drip tray; carefully empty and dry it with towels.
4. Locate the float switch in the drip tray area and ensure it moves freely without obstruction.
5. Reconnect float switch connector if loose, ensuring it seats fully.

DIY Fix Check for visible leaks and water entry points

1. Inspect water inlet hose and connections for drips or loose fittings.
2. Look around door gasket and lower tub seams for signs of water escape into the base.
3. Ensure no excessive suds are present from incorrect detergent use (can contribute to overfill detection).

Technician Only Test float switch continuity and proper operation

1. Disconnect power and confirm float switch wiring integrity.
2. Use a multimeter to check the float switch continuity when actuated.
3. Replace float switch if it fails to open/close reliably.

Parts needed: float switch assembly

Technician Only Service water entry/leak sources and internal tray drainage

1. Remove lower access panels to inspect internal leak points.
2. Check and tighten all water inlet and drain hose connections.
3. Repair or replace defective seals, hoses, pump seal, or other components allowing water into the base.

Parts needed: hose clamps, gasket seals, pump seal