Kenmore Washing Machine Error Code F21
Slow drain — pump is draining but too slowly
Kenmore washers are made by Whirlpool or LG depending on the model series. F21 on Whirlpool-platform models means a slow or failed drain. Check the pump filter first.
What Does Error Code F21 Mean on a Kenmore Washing Machine?
Slow drain — pump is draining but too slowly.
Kenmore washers are made by Whirlpool or LG depending on the model series. F21 on Whirlpool-platform models means a slow or failed drain. Check the pump filter first.
What Causes Error Code F21?
Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:
- 1 Clogged drain pump filter 55% of cases
- 2 Kinked drain hose 25% of cases
- 3 Clogged standpipe 10% of cases
- 4 Worn drain pump impeller 10% of cases
How to Fix Kenmore Washing Machine Error Code F21
- 1
Clean pump filter
Access panel at lower front. Drain water, remove and clean filter.
⚠️ Have towels ready. - 2
Check drain hose
No kinks; proper high loop installation.
- 3
Test drain pump
If filter clear and hose free, pump may be weak or failing.
🔩 Kenmore drain pump ($40–$90)
How to Reset Error Code F21
Run Drain & Spin cycle after clearing blockage.
Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.
When to Call a Professional
If pump filter cleaning doesn't resolve F21, the pump may need replacement.
Related Error Codes
Find Replacement Parts
Use these links to find the exact replacement parts for your Kenmore Washing Machine:
External links — ApplianceErrors.com is not affiliated with these retailers.