F9E3 Serious Moderate DIY
KitchenAid Dishwasher F9E3 — Overfill / Leak Detected
KitchenAid Dishwasher · Error code F9E3
What F9E3 Means
The leak detection sensor in the base pan has tripped, or the tub has overfilled. Cycle aborts and drain pump runs continuously for safety.
Symptoms
- Drain pump runs constantly
- Won't accept any cycle start
- Water visible in the base pan or under unit
- F9E3 displayed
Common Causes
1
Leak from tub, sump, hose, or fitting
Water has reached the base pan.
2
Failed door gasket
Cracked or pinched gasket lets water onto the floor and back into the base.
3
Failed leak sensor (float switch)
Sensor stuck in tripped position.
4
Excessive suds reaching base
Wrong detergent or overdose.
How to Fix It
- Power off at the breaker — do not run a cycle until leak is found.
- Pull the dishwasher forward and inspect the base pan for water.
- Tip the unit back slightly to drain any water out of the base pan.
- Inspect under the tub for leaks at the pump, sump gasket, hose clamps, and inlet valve.
- Check the door gasket for cracks or debris.
- Confirm only dishwasher detergent is being used.
- If no leak is found and the base is dry, replace the leak/float sensor in the base pan.
- Restore power and test a short Rinse Only cycle.
Parts You May Need
If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.
More KitchenAid Dishwasher Codes
Verified against manufacturer documentation: kitchenaid.com
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.