Maytag Dryer Error Code oP

The oP code means the control board has detected an open circuit in the thermistor, which is the temperature sensor. This occurs when the thermistor reads infinite resistance, either because the sensor itself has failed or because there is a wiring problem between the thermistor and control terminals P5 and P6. The code can also appear if the temperature near the thermistor drops below 30 degrees Fahrenheit. The dryer enters a protection mode and stops operating until the fault is resolved.

No, it is not recommended to run the dryer while the oP code is active. The thermistor provides the control board with the temperature data it needs to regulate heat output. Without a working thermistor, the board cannot monitor or control heating properly, which creates a risk of overheating. Resolve the fault before resuming normal use.

If the fix is simply reseating a loose connector, the repair can cost nothing beyond your time. A replacement thermistor part typically falls in the range of $15 to $50 depending on the model. If you hire a technician, expect to pay $100 to $250 or more total, factoring in the service call, labor, and any parts needed.

Many cases of the oP code are caused by a loose wire or disconnected connector, which a DIYer comfortable with basic appliance work can address. Unplug the dryer, remove the front panel, and inspect the wiring between the thermistor and the control board terminals P5 and P6. If wiring is secure and the thermistor has failed, replacing the thermistor is a moderate-difficulty repair that requires sourcing the correct part for your specific model.

Unplugging the dryer and restoring power may temporarily clear the display, but the oP code will return if the underlying fault is not corrected. If the thermistor is physically damaged or the wiring is broken, no amount of resetting will produce a lasting fix. The root cause, whether a failed thermistor, a broken wire, or a loose connector, must be addressed first.