KitchenAid Dishwasher F9E1 — What It Means & How to Fix It

Also shown as F9 E1 on some models.

By Callum Griffin · Researched and verified against manufacturer and repair documentation · Reviewed September 2026

F9E1 means the dishwasher took too long to drain — most often a clogged filter, a kinked drain hose, or a disposer knockout plug left in place.

What this code means

The dishwasher tried to pump out the water but did not drain within the allowed time, usually because something is blocking the drain path or slowing the pump.

KitchenAid dishwashers use the Whirlpool-family electronics platform, so F9E1 (Long Drain) matches the equivalent Whirlpool and Maytag codes. Drain setup varies by install — with a disposer, an air gap, or a standpipe — so your manual's diagram is the best reference for your model.

Most likely causes

CauseHow likelyDIY-fixable?
Food or debris clogging the filter and sump at the bottom of the tub Very common Clean the filter
Drain hose kinked, pinched, or blocked under the sink Common Straighten the hose run
Disposer knockout plug still in place after a new install Common Remove the plug
Clogged air gap, or heavy suds slowing drainage Occasional Clear the air gap / suds

What you can try yourself

  1. Clean the filter at the bottom of the tub — it usually twists out and rinses clean under hot water.
  2. Check the drain hose under the sink and the air gap for kinks, clogs, or food buildup.
  3. If the dishwasher drains through a disposer, confirm the knockout plug was removed during installation.
  4. If the code persists, unplug the dishwasher (or trip the breaker) for about 30 seconds, then restore power to reset it.
  5. If F9E1 returns quickly, a blocked drain path or a failing drain pump usually needs a technician.

When to call a technician

Typical professional repair cost: $0 DIY — service $100-$300 for drain pump, air gap, or hose work

Frequently asked questions

What is a disposer knockout plug?

New disposers ship with a small plastic plug in the dishwasher drain port. If an installer forgets to knock it out, the dishwasher cannot drain and shows F9E1.

How often should I clean the dishwasher filter?

A quick rinse every few weeks, and a thorough clean whenever you notice slower drainage or food smells, keeps the filter from causing errors like F9E1.

Will turning the power off fix F9E1?

A 30-second power reset can clear a temporary error, but it will not clear a real blockage — fix the drain issue and only then reset.

Sources checked

Error meanings can vary by model. This guide was checked against the documentation above; use the manual for the model number on your own appliance when it differs.

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