Whirlpool Washer Error F21: The Drain Pump Fix

The Logic Verdict

90% of the time, this is just a sock in the filter. Do not buy a new pump yet.

• Reddit Consensus: Most users find a “color catcher” sheet or coin blocking the impeller.
• Warning: If you unscrew the filter without clamping the hose, you will flood your laundry room.

What It Means

F21 = Long Drain. The washer tried to drain the water for 8 minutes and failed.

Step-by-Step Fix

1. The Flood Prevention: Tilt the washer back and prop it up with a 2x4 or brick. Place a shallow baking pan under the filter door (bottom right).
2. The Drain Hose: Pull out the small black emergency drain hose first. Uncap it and let it drain into the pan. Do not skip this.
3. The Filter: Once the hose stops dripping, unscrew the large round filter cap.
4. The Cleanout: Pull out the debris. Spin the impeller (the fan inside) with your finger to make sure it moves freely.
5. Reset: Put it back together and run a “Rinse/Spin” cycle.

Parts You Might Need

If the impeller is broken (spins loosely or has no resistance):

Parts You Might Need

• Whirlpool Drain Pump Assembly W10130913