Washer displays F21 and will not drain or complete cycle; water may remain in tub for a long time.

Safety first: Unplug the washer and turn off water. Expect water spillage when opening the pump.

Service the drain pump:

• Access pump: Remove the lower front access panel or rear panel (model dependent). Locate the drain pump at the bottom with hoses attached.
• Drain water: Use a wet/dry vacuum on the end of the drain hose or slowly remove the pump clean-out cap to drain remaining water.
• Inspect impeller: Remove debris such as coins, hairpins, or lint from the pump housing and impeller. Ensure the impeller spins freely and is not broken or loose on the shaft.
• Check hoses: Remove and inspect the tub-to-pump and pump-to-drain hoses for obstructions or internal collapse.

Test operation: Reassemble, plug in, and run a Drain/Spin cycle. If the pump hums but does not move water, or is excessively noisy, replace the drain pump assembly.