Whirlpool Washer Error Code nF

The nF code stands for a Water Supply Error, indicating the washer did not receive enough water during the fill phase. The machine stops the cycle to prevent running components dry. Common causes include clogged inlet screens, closed supply valves, reversed hoses, or a failed inlet valve. In Wool and Lingerie cycles, excessively hot incoming water can also trigger this code.

The nF code is not a safety hazard in most cases. The washer stops the cycle intentionally to avoid running the motor and pump without adequate water, which protects internal components. You should not attempt to bypass the error and force the machine to run dry. Address the water supply issue before resuming use.

If the fix is simply cleaning the inlet screens or adjusting the supply valves, the repair costs nothing beyond your time. If the water inlet valve needs to be replaced, parts typically range from $25 to $75 depending on the model, with professional labor adding $75 to $150 or more depending on your area. Diagnosing the specific cause before ordering parts will help avoid unnecessary expense.

Start by turning off the water supply valves, disconnecting the fill hoses, and inspecting the small mesh screens at the back of the washer for sediment or debris. Clean any clogged screens, make sure both supply valves are fully open, and confirm the hot and cold hoses are connected to the correct ports. If those checks do not resolve the issue, the water inlet valve itself may need to be tested and replaced.

Resetting the washer may temporarily clear the code and allow a new cycle to start, but the error will return if the underlying water supply problem is not corrected. To reset, unplug the washer for one minute and then plug it back in. If nF appears again on the next fill attempt, the root cause must be diagnosed and repaired.