Electrolux Washer Error Code 21

Error code 21 means the washer detected that water is not pumping out of the tub fast enough during the drain cycle. The control board times the drain process, and if the tub does not empty within the expected window, the machine stops and displays this code. The most common causes are a restricted drain hose, a blocked pump, or an electrical issue with the drain pump. You will often find standing water in the drum when this code is active.

It is not recommended to continue running the washer while error code 21 is active. The machine has stopped because water is not draining properly, and forcing another cycle could leave excess water in the tub or cause the machine to overflow. Address the drain restriction or pump issue before attempting to use the washer again.

If the problem is simply a kinked hose or debris in the pump, the repair may cost nothing beyond your time. If the drain pump motor has failed and needs replacement, parts and labor costs typically range from around $100 to $250 depending on your location and whether you hire a technician. Diagnosing the issue yourself first can help you determine whether a professional repair call is necessary.

Start by checking the drain hose for kinks, clogs, or improper installation that could be slowing water flow. Next, inspect and clean the drain pump to remove any debris blocking the impeller. If the hose and pump are clear, verify that the pump is receiving 120 VAC during the drain cycle, as a loss of voltage would prevent proper pump operation. If voltage is correct but the pump still performs poorly, replacing the pump assembly is likely the next step.

Resetting the washer may temporarily clear the code, but it will return if the underlying drain issue is not resolved. The code is triggered by an actual performance condition, slow or incomplete draining, so the root cause must be corrected for the fault to stay cleared. After fixing the drain hose or pump, a reset can be used to restart the machine and confirm the repair was successful.