KitchenAid F9E1 Error Code: Dishwasher Won't Drain
Medium severity
The cycle finishes, the door unlatches, and there's still an inch of cloudy water sitting in the bottom of the tub — that's the F9E1 long-drain fault, and it's almost never the drain pump itself.
Applies to: KitchenAid dishwashers with electronic controls.
What it means
A long-drain fault, meaning the dishwasher isn't draining within the expected time.
The control board gives the drain pump a fixed window to empty the tub, and if the water level sensor still reads "full" once that window closes, it throws F9E1 rather than letting the pump run indefinitely against a blockage it can't clear on its own. That timeout is deliberate: a pump straining against a clog for an extended stretch is more likely to burn out or push water back up through a weak connection than to eventually win, so the control board would rather stop and flag the fault. Because the pump sits at the very end of a plumbing chain that also includes the filter, the hose, and wherever that hose ties into the sink, most real-world F9E1 cases turn out to be a blockage upstream of the pump rather than the pump itself failing.
Common causes
The list runs roughly from the tub outward to the sink, following that same chain:
- Kinked, pinched, or clogged drain hose
- Clogged filter at the bottom of the tub
- Garbage disposal blockage or a knockout plug never removed at install
- Blocked air gap fitting
- Excess suds from the wrong type of detergent
What you can check yourself
That same tub-to-sink order is worth following when you check, since each step rules out one link before moving to the next:
- Clean the filter thoroughly under running water
- Inspect the drain hose for kinks or clogs between the dishwasher and sink
- If connected to a garbage disposer, confirm it's clear and the knockout plug was removed during installation
- Clear any air gap fitting if present
- Confirm dishwasher-specific detergent is being used, not dish soap
- Power-cycle the unit and try again
The disposer knockout plug is worth calling out on its own, since it's a one-time installer mistake rather than something that develops over time: if the dishwasher was hooked up to a disposer and that thin plastic plug inside the disposer's inlet was never knocked out, the drain hose has effectively fed into a dead end since day one, and no amount of filter cleaning will fix that on its own.
Call a professional when
If the filter, hose, and disposal are all clear and F9E1 persists, the drain pump likely needs professional replacement.
Related
- KitchenAid dishwasher codes — full list of KitchenAid fault codes
- KitchenAid F7E2 — wash motor error
- KitchenAid F8E4 — water detected in the base pan
- Dishwasher Not Draining