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Whirlpool Washer F21 Error Code

Whirlpool says F21 (F02 on some models) means draining is taking longer than expected. On newer models the same problem shows as F9 E1: the washer cannot drain correctly. Also shown as F02, F9 E1, F9E1 on some models.

I am Ramez, owner of R3M Appliance Repair in Rockwall, TX. Below is what this code means, what you can safely try before calling anyone, and the point where it is time to call. If you are in the Rockwall area and want it handled today: (469) 446-4242.

✓ Verified against Whirlpool's own documentation✓ Written by a working technician✓ Same-day on most calls around Rockwall
Step 1

What usually causes F21

Most common first. In my experience the first one or two on this list account for most Whirlpool F21 calls.

  1. 1. Clogged drain pump filter
  2. 2. Kinked or clogged drain hose
  3. 3. Drain hose pushed too far into the standpipe, or sealed with tape so there is no air gap
  4. 4. Excess suds from non-HE detergent
  5. 5. Failed drain pump
Step 2

What to try before you call

Safe things a homeowner can do. Unplug the washer before reaching into anything.

  1. Press Pause/Cancel, unplug the washer for 5 minutes and restart.
  2. Check the drain hose for kinks and make sure it goes no more than about 4.5 inches into the standpipe with an air gap.
  3. Unplug the washer, open the lower front panel, drain into a shallow pan and clean the pump filter.
  4. Clear the small drain holes in the door seal and use only HE detergent.
Step 3

When to stop and call a technician

The filter and hose are clear and the washer still will not drain, or the pump does not run. At that point the fix is usually a part, and guessing at parts gets expensive fast. I test first, then quote, so you only pay for what is actually broken.

Doing it yourself?

Parts that usually fix a Whirlpool F21

If the steps above did not clear it, one of these is the usual culprit. Always match the part to your full model number (on the sticker inside the door or on the back).

drain pump

Search by your model number so the part matches.

Find on Amazon

drain hose

Search by your model number so the part matches.

Find on Amazon

drain pump filter

Search by your model number so the part matches.

Find on Amazon

Some links on this page are affiliate links. If you buy through them, R3M may earn a small commission at no extra cost to you. It does not change which parts I recommend.

Questions

Whirlpool F21 questions

How do I clear the F21 code on my Whirlpool washer?

Fix the cause first, then unplug the washer (or turn it off at the breaker) for about a minute and restart. The code clears once the washer no longer sees the problem. If it comes right back, the cause is still there.

Is F21 the same as F02 / F9 E1 / F9E1?

Yes. Whirlpool uses different displays on different model years, so the same problem shows up as F21 on some machines and F02 or F9 E1 or F9E1 on others. The fix is the same.

Is a Whirlpool washer with a F21 error worth repairing?

Usually yes. Drain pump and similar parts cost a fraction of a new washer. I tell you the price before any work starts, and if a repair is not worth it I say so.

Can you come out today for a Whirlpool F21 error in Rockwall?

Most days, yes. I carry common Whirlpool parts on the truck, so many F21 repairs are done in one visit. Call or text (469) 446-4242 with your model number.

Need it fixed today?

Whirlpool washer repair around Rockwall, usually same day.

Honest diagnosis, a clear price before any work starts, and a warranty on every repair.

Call (469) 446-4242Book Service