Electrolux Washer Error Code E21

E21 indicates the washer is having difficulty draining water within the expected cycle time. The control board triggers this fault when it does not receive confirmation from the pressure switch that the tub has emptied. Causes range from a blocked drain filter or kinked hose to a failed drain pump, faulty pressure switch, wiring issues, or heating element current leakage to ground.

A reset may temporarily clear the E21 code, but if the underlying cause has not been resolved, the error will return during the next drain cycle. Unplug the washer for a few minutes to reset the control board, then run a cycle and monitor whether the code reappears. A persistent E21 requires physical inspection and repair of the drain system or related components.

If the fix is a simple drain filter cleaning or hose repositioning, there is no parts cost involved. Replacing a faulty drain pump typically costs between $80 and $200 for the part, plus labor if a technician performs the repair. A pressure switch replacement is generally less expensive, often in the $20 to $60 range for the part, while control board replacement represents the higher end of potential repair costs.

Start by checking the drain hose for kinks or blockages and cleaning the drain filter at the lower front of the machine. If those checks pass, test the drain pump to confirm it is running and moving water. If the pump is working but the error persists, the pressure switch, wiring connections, or heating element should be inspected for faults.

It is not recommended to continue running the washer while E21 is active. If the machine cannot drain, water may remain in the drum, and repeated failed cycles can strain the pump motor or worsen an existing fault. Unplug the appliance, drain any standing water through the filter access panel, and diagnose the cause before running another cycle.