Whirlpool Corporation is a manufacturer of home appliances. Washing machines with the latest technology are also manufactured by them. However, it also has certain issues one of the most common being the Whirlpool Washer F21 Error Code.
The F21 error code is usually associated with a blocked or obstructed drain hose, a malfunctioning drain pump, or a clogged drain filter. It means your washer is unable to drain water.
This issue can easily be fixed by following the steps shared in this guide.

Whirlpool Washer F21 Error Code Fixes:
Here are some solutions to fix the Whirlpool Washer F21 error code.
Reset Your Washer
Try to reset your washer to fix the F21 Error Code issue.
- Press the ‘Pause/Cancel’ button to stop the current wash cycle.
- If there is still water in the washer press the ‘Drain/Spin’ button.
- Once the washer is drained, check if it is working without any errors.
Check the Drain Hose
Check the drain hose of your washing machine it is possible that the drain hose is blocked and therefore unable to drain water from the machine.
- Unplug and pull your machine forward away from the wall.
- Locate the drain hose and inspect it for any sign of damage or obstruction.
- If it is damaged replace the drain hose.
- If the hose is blocked then clean it before reattaching the hose.
- Check if the Whirlpool Washer F21 error code has been solved.

Check the Drain Filter
- Unplug your washing machine.
- Remove the lower access panel.
- Locate the drain filter and remove it by unscrewing it.
- Check for any loose debris and clean out the lint filter too.
Check the Pressure Switch
If the error code is still there then check the internal wiring and the pressure switch. But do so if you have some experience in fixing electronics. If not then contact your technician to fix the issue.
- Open the back panel.
- Locate the pressure switch and remove the wires from the switch.
- Check its continuity with a multimeter.
- If the switch has no continuity then you need to replace.
- Once replaced the error will be solved.
If none of the above solutions fix the issue you need to contact a Whirlpool technician to fix the issue.