KitchenAid F8E4 Error Code: Leak Detected in the Base Pan
High severity
F8E4 means a KitchenAid dishwasher has already found water somewhere it shouldn't be, underneath the unit, and stopped itself rather than keep running with a possible leak in progress.
Applies to: KitchenAid dishwashers with electronic controls and a float switch in the base pan.
What it means
Water has been detected in the drip tray beneath the dishwasher, indicating an active leak.
A small float switch sits at the lowest point of the base pan, under the tub, specifically so any water that escapes the wash system has somewhere to collect and get caught before it reaches the kitchen floor. When that float rises even slightly, the control board treats it as a confirmed leak rather than a guess, which is why F8E4 tends to arrive as a hard stop with an audible alarm instead of a quiet fault code buried in a menu. It's also disproportionately common in the first few weeks after a new installation, when a fitting simply hasn't been snugged down all the way, rather than any part having actually failed.
Common causes
The causes behind this one split fairly evenly between installation issues and in-use issues:
- A loose water supply connection, especially on a recent installation
- A disconnected or improperly seated float switch connector
- Excessive suds from using the wrong detergent
- A worn door gasket or internal leak
What you can check yourself
KitchenAid's own sequence for this code leads with silencing the alarm so you can actually think, then works outward from the most common installation mistake:
- On a new install, check that the water supply fitting is tight and the rubber washer is seated correctly
- Confirm the float switch connector under the unit is fully plugged in
- Empty any standing water from the drip tray
- Confirm you're using dishwasher-specific detergent, not dish soap
- Press Cancel once to silence the alarm, then again to clear the code before investigating further
Do these checks with the water supply valve closed if you can reach it — there's no reason to leave pressure on a fitting you already suspect is loose. If the drip tray is dry and stays dry through a full cycle after reseating the connections, the leak is very likely resolved; if water shows back up in the tray at all, hold off on running further cycles until the source is actually found.
Call a professional when
If you can't identify and fix an obvious cause, or water keeps returning to the drip tray, call a technician promptly, since an unresolved leak can cause water damage.
Related
- KitchenAid dishwasher codes — full list of KitchenAid fault codes
- KitchenAid F8E5 — inlet fill valve stuck open
- KitchenAid F9E1 — long-drain fault
- Dishwasher Leak Detected / Water Under the Unit