Kenmore Washer Error Code E48

E48 means the control board is detecting a closed circuit condition in the door lock PTC thermistor circuit. The PTC is a resistive component inside the door lock assembly that helps the board confirm the lock is operating correctly. When the board reads a shorted or closed circuit from the PTC, it stops the washer and displays E48. The door lock assembly must be removed and the PTC measured with a multimeter to properly diagnose the fault.

You should not attempt to run the washer while E48 is active. The error indicates a fault in the door lock circuit, and the washer's safety systems are designed to prevent operation when the door lock cannot be properly verified. Running the machine in this condition could result in the door opening during a cycle, which is a water and personal safety hazard.

A simple power reset is unlikely to permanently clear E48 because the error is tied to a measurable electrical condition in the PTC circuit. If the PTC or wiring is actually shorted, the fault condition will still be present when power is restored and the board performs its checks. The underlying hardware fault must be diagnosed and corrected before the error will clear and stay clear.

A knowledgeable DIYer can perform the initial diagnostic step, which involves removing the door lock assembly and measuring the PTC resistance with a multimeter. If the PTC tests shorted, replacing the door lock assembly is a moderately involved repair that requires disconnecting the wiring harness and removing the door boot seal in most models. If the wiring harness is found to be shorted, repairing or replacing the affected section may also be within DIY capability.

If the door lock assembly is the cause, replacement parts typically range from $30 to $90 depending on the specific model. If professional labor is required, total repair costs including parts and labor generally fall in the range of $120 to $250. Wiring harness repairs may cost less if no parts are needed, while a control board replacement would be at the higher end of the cost spectrum.