F4E2
Whirlpool
Overfill / Float Switch Fault
Dishwasher displays F4E2; unit may overfill or not detect water level correctly; sometimes water may reach the door lip.
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Safety Warning
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.
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Possible Causes
Stuck float switch, Debris under float, Failed float switch, Wiring issue to float switch
How to Fix / Troubleshooting
Safety First: Disconnect power and avoid operating the dishwasher if it is overfilling.
- Check float movement: Open the door and locate the float (usually a small dome or cylinder in the tub floor). Lift it up and down; it should move freely and click. Remove any debris or mineral buildup.
- Inspect float switch: Remove the toe-kick panel and locate the float switch beneath the tub. Check that the actuator from the float engages the switch properly.
- Test switch continuity: With power off, disconnect the switch wires and test continuity while pressing and releasing the switch. Replace if it does not change state.
- Check wiring: Inspect the harness for damage or loose connectors.
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Repair Difficulty
Medium
3/5
Required Part
Float Switch Assembly
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