Code F21 will not clear

The Whirlpool washer error code F21 means the washing machine has a “water draining issue”, meaning the drain pump itself, or the drain hose is clogged and the washer is having problems draining the water out. In other words, the washer is taking too long to drain the water out of the tub.

This could be caused by using too much detergent or not using High Efficiency (HE) detergent. The washer will not be able to spin out water with the excess suds. When "Sud" or "Sd" is displayed, the washer automatically extends the rinse time to remove the excess suds

Cause 1

Drain Pump

Sometimes, small objects or articles of clothing can get caught in the drain pump. To determine if anything is blocking the drain pump, remove the drain pump and check the pump for obstructions. If the drain pump is clear of obstructions, but is still noisy during the drain cycle, replace the drain pump.

Cause 2

Clogged Pump or Hose

Sometimes, socks and other small articles of clothing can get into the drain system and clog the pump hose or the pump itself. Remove the hoses from the pump and check for any obstructions.

Cause 3

Lid Switch Assembly

The lid switch assembly prevents the washer from spinning when the lid is open. If the lid switch assembly fails, the washer will not drain. To determine if the lid switch assembly is defective, use a multimeter to test each of the lid switches for continuity. If a lid switch does not have continuity, replace it.