Maytag Dryer Error Code 1

Error code 1 means the control board detected a shorted thermistor, with the sensor reading a resistance so low it corresponds to a temperature above 175 degrees Fahrenheit. The thermistor is a small temperature sensor in the heat circuit. The code can mean the thermistor itself has failed, the wiring to it is shorted, or actual overheating from a clogged vent is causing the extreme reading.

Start by cleaning the lint screen and checking the full exhaust vent path for blockages, including the exterior vent cap. If airflow is unobstructed, use a multimeter to test the thermistor resistance and compare it to the spec in your service manual. A shorted thermistor will read near zero ohms and needs to be replaced. If the thermistor tests within spec, inspect the wiring harness for damaged insulation or pinched wires.

Yes, a clogged vent is one of the first things to check when code 1 appears. Restricted exhaust airflow causes heat to build up inside the dryer drum and heating circuit, which can push temperatures high enough to create the extreme thermistor reading this code is based on. Clear the lint screen and the full length of the exhaust duct before assuming the thermistor has failed.

No, you should not continue running the dryer with error code 1 active. A shorted thermistor means the dryer may not regulate heat correctly, and if the code is caused by a blocked vent or genuine overheating, continued use significantly increases the risk of a dryer fire. Stop using the dryer, clean the lint screen and exhaust vent, and diagnose the thermistor before running another cycle.

If the fix is simply cleaning a blocked lint screen or vent duct, there is no parts cost. A replacement thermistor for a Maytag dryer typically costs between $10 and $30 for the part. If you hire a technician, expect a service call fee plus labor, generally bringing the total to $100 to $175. A damaged wiring harness or failed control board will cost more, with control boards often ranging from $100 to $250 for the part alone.