Kenmore Dryer Error Code nP

The nP code means the dryer is detecting that its electrical power supply is incorrect or incomplete. Electric dryers require a full 240-volt supply across two legs of power. The code appears when one or both legs are missing, which can be caused by a tripped breaker, a blown fuse, a power outage, or an incorrectly connected power cord at the terminal block on the back of the dryer.

Simply resetting the dryer's control board will not clear nP if the underlying power supply issue has not been corrected. The code is generated by the control board detecting a missing or insufficient voltage leg, so the power supply problem must be resolved first. Once proper 240-volt power is restored, the code should clear on its own when the dryer is powered back on.

The repair cost depends on the cause. Resetting a tripped breaker costs nothing. Replacing a blown fuse typically costs just a few dollars for parts. If the power cord needs to be replaced, parts generally range from $15 to $40 depending on whether a 3-wire or 4-wire cord is required. If a licensed electrician is needed to inspect or repair the home's wiring or outlet, labor costs can range from $75 to $200 or more depending on your location and the complexity of the work.

Start by checking the circuit breaker in your home's electrical panel. Switch the dryer's double-pole breaker fully to OFF and then back to ON. If the breaker holds, inspect the power cord connection at the terminal block on the rear of the dryer to make sure all wires are secure and properly seated. If those steps do not resolve the code, test the outlet with a multimeter to confirm 240 volts is present across both legs.

No, you should not attempt to operate the dryer while the nP code is active. An incomplete power supply can cause the heating element to malfunction or prevent the motor from running correctly. More importantly, loose wiring at the terminal block or a failing connection can create a fire or shock hazard, so the power supply issue should be inspected and corrected before resuming use.