Whirlpool Washer F21 Error Code

What Does F21 Mean?

The Whirlpool washer F21 error code indicates a long drain problem. This means the washer is taking too long to drain water from the tub during the wash or spin cycle.

In many cases, the washer will stop mid-cycle and display the F21 code when it detects that water has not drained within the expected amount of time.

Common Causes of the Whirlpool F21 Error

Several issues can trigger the F21 code, including:

  • Clogged drain pump filter
  • Blocked or kinked drain hose
  • Drain blockage inside the washer
  • Faulty drain pump
  • Excess detergent or suds buildup
  • Wiring or electrical connection problems
  • Debris trapped in the drain system

How To Fix Whirlpool F21 Error

Follow these troubleshooting steps to diagnose and fix the F21 error code.

1. Unplug the Washer

Disconnect the washer from power for safety before beginning any inspection or repair.

2. Check the Drain Hose

Inspect the drain hose behind the washer for:

  • kinks
  • bends
  • clogs
  • crushed sections

Straighten or clean the hose if necessary.

3. Clean the Drain Pump Filter

Many Whirlpool washers include a drain pump filter that can become clogged with:

  • lint
  • coins
  • socks
  • debris

Locate the access panel near the bottom front of the washer and carefully remove the filter.

Be prepared for water to drain out during this step.

4. Inspect the Drain Pump

Listen for unusual noises coming from the drain pump during the drain cycle.

Signs of a failing drain pump may include:

  • grinding noises
  • humming without draining
  • leaking
  • failure to remove water

5. Run a Test Cycle

After cleaning and inspection:

  • reconnect power
  • restart the washer
  • run a rinse and spin cycle

If the washer drains normally, the problem may be resolved.

How To Reset Whirlpool Washer After F21 Error

You can often reset the washer using these steps:

  1. Unplug the washer from power.
  2. Wait approximately 5 minutes.
  3. Plug the washer back in.
  4. Press the Pause/Cancel button twice.
  5. Run a short rinse and spin cycle.

Some Whirlpool models may use slightly different reset procedures.

Frequently Asked Questions

Can I still use my Whirlpool washer with an F21 code?

It is not recommended. Continued use may worsen the drainage issue or damage the drain pump.

Will unplugging the washer clear the F21 code?

Sometimes. However, if the underlying drainage problem is not fixed, the error code will usually return.

What causes Whirlpool washers to drain slowly?

Common causes include clogged filters, blocked hoses, excessive detergent buildup, or a failing drain pump.

Is the F21 error expensive to repair?

In many cases, the problem can be fixed by cleaning the filter or drain hose. If the drain pump must be replaced, repair costs may increase.

How long does it take to fix an F21 error?

Simple clogs may take less than 30 minutes to fix. More complex pump or wiring problems may require professional service.

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