Maytag Washer Error Code F21

F21 means the washer's drain cycle took longer than eight minutes without the pressure switch confirming the tub was empty. The washer stops to prevent damage and displays F21, sometimes alternating with 'SudS' if excess suds are detected. The problem is most often related to a blocked drain, too much detergent, or an improperly routed drain hose.

You should not run the washer through additional cycles until the cause is identified. The machine halted because water did not drain properly, meaning standing water may remain in the tub. Running another cycle risks overflow, pump damage from cavitation, or motor strain. Resolve the drain issue before restarting normal use.

Clearing or resetting the code removes it from the display, but the error will return if the underlying drain problem is not fixed. The control board will log F21 again the next time a drain cycle exceeds eight minutes. A reset is a useful first step to confirm whether the issue is intermittent, but it is not a repair on its own.

Many F21 causes are DIY-friendly. Start by clearing the code, unplugging the washer, and checking that the drain hose is not kinked, forced into the standpipe, or routed higher than eight feet. Cleaning the drain pump filter is also a straightforward task that often resolves the error. If the pump or pressure switch needs replacement, that requires more comfort with appliance disassembly but is still achievable for an experienced DIYer.

If the fix is simply cleaning the pump filter or adjusting the drain hose, there is no parts cost and only your time is involved. A replacement drain pump typically runs in the range of $30 to $90 for the part, with professional labor adding $100 to $200 depending on your area. A pressure switch replacement is generally less expensive, usually $15 to $50 for the part.