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ErrBase

Whirlpool Washer F9 Error Code: Drain System Fault Category

Quick Answer

Whirlpool F9 is the drain fault category and is almost always seen as F9 E1 (long drain). When users search for 'F9 error code' without the E suffix, they are seeing F9 E1 on their display but not noting the second part. F9 E1 triggers when the washer detects water remaining in the tub after 8 minutes of drain pump operation.

Whirlpool F9 is the drain fault category and is almost always seen as F9 E1 (long drain). When users search for 'F9 error code' without the E suffix, they are seeing F9 E1 on their display but not noting the second part. F9 E1 triggers when the washer detects water remaining in the tub after 8 minutes of drain pump operation. On Whirlpool front-loaders (Duet), the drain pump filter is behind the lower kick plate and accumulates coins, bobby pins, and small items from pockets. On Whirlpool top-loaders (Cabrio), the drain path includes a hose that can kink behind the washer. The key Whirlpool-specific detail: Whirlpool measures drain performance by the pressure switch, not by a flow sensor. So if the pressure switch hose is cracked or disconnected, the washer thinks it cannot drain even when the pump is working perfectly.

WhirlpoolWasherSeverity: medium85% DIY Success
Time to Fix
15–60 min
Difficulty
beginner
Parts Cost
$5 – $50
Tools Needed
Shallow pan and towels, Flashlight

What Does the F9 Code Mean?

F9 = drain fault category. F9 E1 = long drain (most common). Check drain pump filter on front-loaders, drain hose on top-loaders. Also check the pressure switch hose for cracks.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Drain pump filter clogged with debris40%
Drain hose kinked or blocked24%
Pressure switch hose cracked or disconnected14%
Drain hose positioned too high (over 8 feet)12%
Drain pump motor failed10%

Symptoms You May Notice

  • F9 E1 on display
  • Water remains in drum after cycle
  • Washer stops during or after wash
  • Front-loader door locked with water visible
  • Drain pump runs but water does not exit
  • Foul smell from stagnant water

Can you reset a Whirlpool washer to clear the F9 code?

Press Pause/Cancel twice, then Power. Or unplug for 60 seconds. F9 E1 will return if water is still detected in the tub - the drain issue must be resolved first.

Tools Required for Diagnosis

Shallow pan and towelsFlashlightPliers

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

1

Front-loaders

Front-loaders: open the lower kick plate. Pull the small emergency drain hose and drain into a pan. Then open the pump filter cap and remove debris (coins, buttons, hair ties, sock fragments are common). Top-loaders: check the drain hose at the back of the washer for kinks.

2

Check the pressure switch hose

3

With the washer plugged in and running a drain cycle

4

Check the standpipe or drain connection

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name
Whirlpool Drain Pump AssemblyW10130913 · $25–$50
Pressure Switch HoseW10004890 · $5–$10

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs
Labor Approach
Our Verdict
REPAIR
Estimated Cost: $28 (Parts) vs $700 (New Machine)

Frequently Asked Questions

What is the difference between F9 and F21 on a Whirlpool washer?
F9 (specifically F9 E1) is used on newer Whirlpool models and means 'long drain' - the washer took too long to drain. F21 is the older equivalent on Whirlpool Duet models. They indicate the same type of fault (drain issue) but appear on different model generations. The diagnostic approach is identical for both.
Can a cracked pressure hose really cause F9?
Yes. This is a commonly missed cause. The Whirlpool control board uses the pressure switch to determine water level. If the pressure hose is cracked, the switch always reads 'water present' regardless of actual drain. The washer drains completely but the board thinks it failed. A $5-10 hose replacement fixes it.
F9 appears after the wash is done and clothes are clean. Why?
F9 E1 triggers during the final drain sequence. The washer completed the wash and rinse successfully but then could not drain the final rinse water within the time limit. This means a partial clog that allows slow draining but not fast enough. Clean the pump filter - it is likely 80% blocked.

Related Whirlpool Washer Error Codes

Code: HUBWhirlpool Washer Error Codes: Complete GuideCode: F9 E1Whirlpool F9 E1: Long DrainCode: F21Whirlpool F21: Drain FaultCode: DUET-HUBWhirlpool Duet Washer Error Codes

Same Fix Works on These Brands

Whirlpool shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

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Models Known to Experience F9 Errors

This repair applies to most Whirlpool washers with this error code. Common model numbers include:

WFW9150WW, WFW94HEXW, WTW5000DW, WTW7000DW, WFW8300SW, WTW8500DC

Last verified for technical accuracy on March 15, 2026