F9Serious
Whirlpool Dishwasher F9 Error Code
Too much water detected in the tub, which may cause leaking.
Common causes
- Malfunctioning water inlet valve (stuck open)
- Faulty float switch
- Overfilling due to drain issue
How to fix it
- Turn off water supply and unplug dishwasher.
- Check float (white cone) in tub for free movement.
- Inspect float switch for continuity (should be closed when float down).
⚠ When to call a pro: If float moves freely and switch tests bad, call a technician.
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Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.