What Does the F21 Error Mean?
The Kenmore washer F21 error code indicates that the washer is taking too long to drain water from the tub.
The control board monitors how quickly water is removed during the drain cycle. If the washer cannot drain within the expected time limit, it may stop the cycle and display the F21 error code.
Common Causes of the Kenmore F21 Error
Several issues can trigger the F21 error code, including:
- Clogged drain hose
- Blocked drain pump filter
- Obstruction inside the drain pump
- Kinked drain hose
- Faulty drain pump
- Household drain blockage
- Excessive detergent buildup
- Wiring or control board issues
How To Fix Kenmore Washer F21 Error
Follow these troubleshooting steps to help diagnose and fix the F21 error code.
1. Disconnect Power
Unplug the washer from the electrical outlet before beginning any inspection or repair.
2. Inspect the Drain Hose
Check the drain hose for:
- kinks
- bends
- clogs
- improper installation
Correct any restrictions that may prevent proper drainage.
3. Clean the Drain Pump Filter
If your Kenmore washer includes an accessible drain filter:
- remove the filter
- clean out debris
- reinstall it securely
Common obstructions include:
- coins
- lint
- buttons
- small clothing items
4. Inspect the Drain Pump
Examine the drain pump for:
- debris
- blockages
- unusual noises
- signs of wear
A failing drain pump may not remove water efficiently.
5. Check the Household Drain
Make sure the standpipe or household drain is flowing properly.
A blocked household drain can slow water removal and trigger the F21 error.
6. Run a Test Cycle
Reconnect power and run a rinse and spin cycle.
If the error returns, additional diagnosis may be necessary.
How To Reset Kenmore Washer After F21 Error
You can often reset the washer using these steps:
- Turn off the washer.
- Unplug the washer from power.
- Wait approximately 5 minutes.
- Plug the washer back in.
- Run a rinse and spin cycle.
Some Kenmore washer models may use slightly different reset procedures.
Frequently Asked Questions
What does F21 mean on a Kenmore washer?
The F21 error code indicates that the washer is taking too long to drain water.
Can a clogged drain hose cause the F21 error?
Yes. Drain hose restrictions are one of the most common causes of the F21 error.
Can a blocked drain pump trigger the F21 error?
Yes. Debris inside the drain pump can reduce drainage performance and trigger the code.
Will unplugging the washer clear the F21 error?
Sometimes. However, if the drainage problem remains, the error will likely return.
Is the F21 error expensive to repair?
Many F21 problems can be fixed by clearing clogs and cleaning filters. Replacing the drain pump may increase repair costs.