What causes Whirlpool Dishwasher F9 E1?

Clogged filter at the bottom of the tub. Drain hose kinked, pinched or clogged between the back of the dishwasher and the sink. Garbage disposer clogged, or its knockout plug never removed after a new installation. Blocked air gap at the sink, if one is installed. Drain hose routed incorrectly (wrong side or outside the frame). Too many suds from dish soap or too much detergent. Debris jamming the drain pump. Less often: a failed wash motor, drain pump or control (a service diagnosis; check whether F9E2 or a wash motor code such as F7E2 has also appeared).

How do I fix Whirlpool Dishwasher F9 E1?

Remove the filter from the bottom of the tub and clean it thoroughly under running water. Check the drain hose from the back of the dishwasher to the sink for kinks, pinches or clogs, and make sure it's routed on the correct side and inside the frame. If the dishwasher drains into a garbage disposer, run the disposer to clear any food. On a new installation, make sure the disposer's knockout plug was removed. If you have an air gap on the sink, remove its cap and clear any blockage, following the air gap maker's instructions. If you see suds, turn the dishwasher off and let them settle. Use only automatic dishwasher detergent, never dish soap, and don't use too much. Reset the control: unplug the dishwasher for 30 seconds, or turn off its breaker for 30 seconds if it's hard-wired, then restore power and run a cycle. If water still sits in the tub or F9E1 comes back, schedule service.

When should I call a pro for Whirlpool Dishwasher F9 E1?

F9E1 returns after you've cleaned the filter and checked the hose, disposer and air gap. F9E2 (drain pump electrical) or a wash motor code like F7E2 also shows up. Whirlpool's technical manual says these point to a pump or motor problem that needs testing. You hear a hum with no water moving, or grinding from the pump area, which can mean the pump is jammed with hard debris like glass. Testing or replacing the drain pump, wash motor or control. Whirlpool's manual warns against swapping the pump without confirming it has failed. The dishwasher is under warranty. Schedule Whirlpool service (1-866-698-2538) rather than opening it up.

Code: F9 E1🧺 Whirlpool Dishwasher

Whirlpool Dishwasher F9 E1: Long Drain, Dishwasher Not Draining (Meaning, Causes, Fixes)

Q: What does Whirlpool Dishwasher F9 E1 mean?

F9 E1 (F9E1, or the Clean light flashing 9 times, pausing, then 1 time) on a Whirlpool dishwasher means Long Drain: water isn't leaving the tub fast enough, or at all. Whirlpool's fixes start with the filter, the drain hose, the garbage disposer and the air gap, and most F9 E1 codes clear there without replacing any parts. Whirlpool's error code guide lists F9E1 as "Long Drain - Not Draining." On models with a digital display it shows as F9E1; on models with a flashing Clean light it shows as 9 flashes, a short pause, 1 flash, then a longer pause before the pattern repeats (Whirlpool reads the first count as the Function number and the second as the Error number). Whirlpool's technical manual W11499711, which covers its Whirlpool, KitchenAid and JennAir dishwashers, says F9E1 is not likely a drain pump electrical problem unless F9E2 is also recorded, and warns not to change the drain pump without confirming it has failed electrically, seized, or broken its chopper blade. It also notes the control uses the wash motor signal to verify draining, so a failed wash motor or a badly clogged filter can trigger a drain fault too. In a service test cycle on Whirlpool's 24 inch filtration models, the drain should finish in about 1 minute (technical manual W11480208).

Reviewed 2026-10-22 · Based on 6 manufacturer & service sources

What the code means

Whirlpool's error code guide lists F9E1 as "Long Drain - Not Draining." On models with a digital display it shows as F9E1; on models with a flashing Clean light it shows as 9 flashes, a short pause, 1 flash, then a longer pause before the pattern repeats (Whirlpool reads the first count as the Function number and the second as the Error number). Whirlpool's technical manual W11499711, which covers its Whirlpool, KitchenAid and JennAir dishwashers, says F9E1 is not likely a drain pump electrical problem unless F9E2 is also recorded, and warns not to change the drain pump without confirming it has failed electrically, seized, or broken its chopper blade. It also notes the control uses the wash motor signal to verify draining, so a failed wash motor or a badly clogged filter can trigger a drain fault too. In a service test cycle on Whirlpool's 24 inch filtration models, the drain should finish in about 1 minute (technical manual W11480208).

Likely causes

Clogged filter at the bottom of the tub
Drain hose kinked, pinched or clogged between the back of the dishwasher and the sink
Garbage disposer clogged, or its knockout plug never removed after a new installation
Blocked air gap at the sink, if one is installed
Drain hose routed incorrectly (wrong side or outside the frame)
Too many suds from dish soap or too much detergent
Debris jamming the drain pump
Less often: a failed wash motor, drain pump or control (a service diagnosis; check whether F9E2 or a wash motor code such as F7E2 has also appeared)

Safe DIY checks

⚠ Before you start

Unplug the appliance (or switch off its breaker) and shut off the water supply valves before removing panels or disconnecting hoses. Keep towels handy for residual water.

Remove the filter from the bottom of the tub and clean it thoroughly under running water.
Check the drain hose from the back of the dishwasher to the sink for kinks, pinches or clogs, and make sure it's routed on the correct side and inside the frame.
If the dishwasher drains into a garbage disposer, run the disposer to clear any food. On a new installation, make sure the disposer's knockout plug was removed.
If you have an air gap on the sink, remove its cap and clear any blockage, following the air gap maker's instructions.
If you see suds, turn the dishwasher off and let them settle. Use only automatic dishwasher detergent, never dish soap, and don't use too much.
Reset the control: unplug the dishwasher for 30 seconds, or turn off its breaker for 30 seconds if it's hard-wired, then restore power and run a cycle.
If water still sits in the tub or F9E1 comes back, schedule service.

🛠 When to call a pro

F9E1 returns after you've cleaned the filter and checked the hose, disposer and air gap.
F9E2 (drain pump electrical) or a wash motor code like F7E2 also shows up. Whirlpool's technical manual says these point to a pump or motor problem that needs testing.
You hear a hum with no water moving, or grinding from the pump area, which can mean the pump is jammed with hard debris like glass.
Testing or replacing the drain pump, wash motor or control. Whirlpool's manual warns against swapping the pump without confirming it has failed.
The dishwasher is under warranty. Schedule Whirlpool service (1-866-698-2538) rather than opening it up.

Parts that commonly fix it

Always match the part number to your exact model.

⚙

Dishwasher filter

Clean the filter first. Replace it only if it's damaged, matching the part to your model number.

[affiliate link slot: AFFILIATE_SLOT_DW_FILTER]

⚙

Dishwasher drain hose

Only if the hose is crushed, split or permanently kinked.

[affiliate link slot: AFFILIATE_SLOT_DW_DRAIN_HOSE]

⚙

Dishwasher cleaner

Whirlpool suggests cleaning the dishwasher about every 30 days, for example with affresh Dishwasher Cleaner.

[affiliate link slot: AFFILIATE_SLOT_DW_CLEANER]

⚙

Dishwasher drain pump

Only after a confirmed failure. Whirlpool's technical manual says F9E1 alone rarely means a bad pump.

[affiliate link slot: AFFILIATE_SLOT_DW_DRAIN_PUMP]

Sources

Last reviewed 2026-10-22. Always confirm against the manual for your exact model number.

Whirlpool Dishwasher F9 E1: Long Drain, Dishwasher Not Draining (Meaning, Causes, Fixes)

What the code means

Likely causes

Safe DIY checks

🛠 When to call a pro

Parts that commonly fix it

Dishwasher filter

Dishwasher drain hose

Dishwasher cleaner

Dishwasher drain pump

Related codes

Sources