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(469) 638-3215Under the tub sits a drip tray with a float. When water collects there, the float lifts, the dishwasher starts draining and blocks operation, and F8E4 appears. The code is a warning that something is leaking.
KitchenAid’s code-reading article describes F8E4 as “Water Detected in Drip Tray.” Once it triggers, the drain sequence begins and the dishwasher won’t run. KitchenAid’s checks cover leaking water connections, a float switch that has come unplugged, water sitting in the tray and too many suds. Pulling the toe panel and drip tray means working near wiring, so we treat that part as technician work. Codes vary by model; check your manual. Sources: KitchenAid F8E4 (opens in a new tab) and the KitchenAid leak guide (opens in a new tab).
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Look for these around and under the dishwasher.
KitchenAid’s leak guide sorts it by where the water shows up.
KitchenAid’s first moves: turn off the water supply, press Cancel once to silence the alarm, and leave the power on. Keep the door closed so the dishwasher can finish draining.
If there is foam in the tub, let it settle. KitchenAid says to use only detergent made for automatic dishwashers.
Under the sink, look at the supply line and drain hose for drips, cracks or a loose fitting. A missing rubber washer in a fitting is a common cause.
Once things are dry, open the water supply again. KitchenAid says pressing Cancel a second time clears the code after the first press silenced the alarm.
Schedule a repair if:
More help, including other KitchenAid codes:
Dishwasher repairKitchenAid dishwasher Clean Light guideKitchenAid dishwasher F9E1 error codeKitchenAid dishwasher F9E2 error codeKitchenAid Undercounter Cleaning Light guideKitchenAid range F2 E1 error codeAll KitchenAid appliance repairKitchenAid F8E4 articleWritten estimate first
We pull the toe panel, trace the water to the seal, valve, hose or tub, reset the float and quote the fix in writing.

KitchenAid designs it to drain and stop once water reaches the drip tray. That protects your floor. It stays locked out until the tray is dry and the code is cleared.
Yes. KitchenAid lists excessive suds as a cause, because foam can push past the door seal. Use automatic-dishwasher detergent only.
After the leak is fixed and the area is dry, KitchenAid says to press Cancel once to silence the alarm and a second time to clear the code.
Yes. Water that reaches the drip tray is already outside the tub, and slow leaks can damage the subfloor and cabinet long before you see them.
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