F21Medium
Whirlpool washer error F21
Whirlpool washer error F21 means the washer failed to drain within 8 minutes. The most common reason is a blocked drain path or a clogged filter in the drain pump, and both are checks you can do yourself.
Also shows as F2 1
Symptom
F21
Free checks
4 checks
Then the part
Drain pump
The 4 free checks
Start at the top. Unplug the machine first.
- 01
Check the drain hose is not kinked or crushed behind the machine.
- 02
Check the drain hose and the house drain for a clog or restriction.
- 03
Clear the large-item filter in the drain pump. On a front loader with no access door, it is reached from behind the lower panel.
- 04
Unplug the washer for 5 minutes, then plug it back in to reset the control.
What causes it
Listed most likely first.
| Cause | How often | DIY |
|---|---|---|
| The drain hose is kinked, so water cannot leave the machine | Most common | Yes |
| The drain path is clogged — the hose, the house drain, or the large-item filter in the pump | Most common | Yes |
| The drain pump does not move water when it runs, so the tub never empties | Common | Call a pro |