Whirlpool Front Load Washer Error Code F21: Meaning & How to Fix It

By the ErrorCodePro Editorial Team · Last reviewed October 20, 2026

Whirlpool front load washer error code F21 means: The washer has a drain problem. [1] Keep using it? Not until the cause is fixed. Start with the owner checks below, beginning with: check the drain hose.

Quick facts

Code	F21
Also shown as	None listed by the manufacturer
Brand / appliance	Whirlpool front load washer (front load washers)
System	Drain
Official meaning	The washer has a drain problem. [1]
Keep using it?	Not until the cause is fixed
DIY-safe?	Owner checks only (listed below)
Support	Whirlpool: 1-866-698-2538

On this page: Meaning · Steps · Parts · When to call a technician · Related codes · FAQ

What error code F21 means on a Whirlpool front load washer

The washer has a drain problem. [1]

This is a drain code. Codes and wording can vary by model, so check your owner's manual for your model number.

How to fix Whirlpool front load washer error code F21 (safe owner checks)

Safety first: disconnect power before you remove any panel or reach into the sump or drum. Do not touch wiring, the control board or the motor. If you see water near electrical parts, stop and call a technician. These steps are based on Whirlpool's published guidance [1], rewritten for clarity.

Check the drain hose. Make sure the drain hose is not kinked or clogged.
Reset the washer. Unplug the washer (or switch off its breaker) for 5 minutes, then restore power.

Parts that may be involved

Exact parts depend on your model number. This page lists part types only, never part numbers.

Drain hose

When to call a technician

Anything involving wiring, the control board, the motor or the water valve electrics
The appliance is under warranty: contact Whirlpool: 1-866-698-2538 first

Frequently asked questions

What does error code F21 mean on a Whirlpool front load washer?

Whirlpool lists F21 as follows: The washer has a drain problem.

Is it safe to keep using the front load washer with F21?

Not until the cause is fixed.

Can I fix Whirlpool front load washer error F21 myself?

Only with the owner checks on this page, starting with: check the drain hose. If it persists, call a technician or Whirlpool: 1-866-698-2538.

Sources

Whirlpool Product Help: F21 - Front Load Washer (official)

Last reviewed: October 20, 2026. ErrorCodePro is not affiliated with Whirlpool.