Whirlpool Washer Error Code 18

Error code 18 means the washer ran its Drain Pump Clearing algorithm but the pressure sensor still detected water in the tub at the end of the sequence. The machine stops the cycle and displays this code to alert you that draining did not complete successfully. This is most often caused by a blocked pump filter, a kinked drain hose, or a failing drain pump.

Unplugging the washer for a minute and restarting it may temporarily clear the code, but if the underlying blockage or component fault is still present, the error will return as soon as the machine attempts to drain again. A reset should only be done after addressing the root cause, such as cleaning the pump filter or clearing the drain hose. Repeatedly resetting without fixing the problem can lead to water damage or further strain on the pump.

If the fix is simply cleaning the pump filter or straightening a kinked hose, there may be no parts cost at all, though a service call can run anywhere from $75 to $150 for labor. If the drain pump needs replacement, parts and labor together typically range from $150 to $350 depending on the specific model and local labor rates. A faulty pressure sensor is generally a less expensive repair, with parts and labor usually falling in the $100 to $200 range.

Start by cleaning the drain pump filter, which is accessible through a small panel at the front base of the machine. After cleaning the filter, check that the drain hose is not kinked or clogged, and confirm that the household standpipe is draining freely. If the error persists after those steps, the drain pump itself or the pressure sensor may need to be tested and possibly replaced.

You should not continue using the washer until the error is resolved. Running cycles with standing water in the tub can lead to mold and mildew growth, water leaks, and additional stress on the motor and pump components. Address the drainage issue first before resuming normal laundry cycles.