KitchenAid · Dishwasher Moderate

F8E1 — Slow Drain

The tub is emptying slower than the control expects during the drain phase — a partial restriction in the drain path, not low water during the wash phase.

Keep using it?
Yes, with caution
DIY difficulty
Moderate

How to fix it

  1. Remove and clean the air gap cap on the sink, if your installation has one.
  2. Disconnect the drain hose and check for kinks or a partial clog; clear any debris found.
  3. Power off and remove the filter and lower spray arm to inspect the sump for debris.
  4. Check the drain pump impeller for a partial obstruction.
  5. Restore power and run a Rinse Only cycle, timing how quickly the tub empties.
  6. Replace the drain pump if the impeller is clear but the drain remains slow.

Why it happens

Typical signs: Standing water left in the tub at the end of a cycle · Cycle takes longer than normal, or the drain runs longer than usual · F8E1 displayed

  • Partially clogged air gap or drain hose Food debris restricting flow rather than blocking it completely.
  • Debris partially blocking the drain pump impeller Glass, a label, or food particles slowing the impeller without stopping it.
  • Kinked or partially crimped drain hose The hose behind the unit is pinched, reducing flow.
  • Partially clogged check valve in the sump The valve isn't seating cleanly, slowing drain-down.

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.

  • KitchenAid dishwasher drain pump Common replacement
    Amazon →

More KitchenAid dishwasher codes

6-1 6-1 (F6E1) Error — User Interface / Main Control Error 7-1 7-1 Error — Heating Element Failure 8-1 8-1 (F8E1 / H2O) Error — Not Detecting Water F2E1 F2E1 — Stuck Key on Control Panel F3E1 F3E1 — Thermistor / OWI Sensor Failure F5E1 F5E1 — Door Switch Not Detected

All KitchenAid codes → All dishwasher codes →

Frequently asked questions

What does the F8E1 code mean on a KitchenAid dishwasher?

The tub is emptying slower than the control expects during the drain phase — a partial restriction in the drain path, not low water during the wash phase.

What causes the F8E1 code on a KitchenAid dishwasher?

Partially clogged air gap or drain hose: Food debris restricting flow rather than blocking it completely. Debris partially blocking the drain pump impeller: Glass, a label, or food particles slowing the impeller without stopping it. Kinked or partially crimped drain hose: The hose behind the unit is pinched, reducing flow.

Is it safe to keep using a KitchenAid dishwasher with a F8E1 error?

Yes, with caution. This is rated a moderate-severity fault.

How do I fix F8E1 on a KitchenAid dishwasher?

Remove and clean the air gap cap on the sink, if your installation has one. Disconnect the drain hose and check for kinks or a partial clog; clear any debris found. Power off and remove the filter and lower spray arm to inspect the sump for debris.

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.