Maytag Dryer Error Code F:23

F:23 on a Maytag dryer means the exhaust thermistor has shorted. The exhaust thermistor is a resistance-based temperature sensor in the dryer's exhaust airflow path. When it short-circuits, it sends an invalid signal to the control board, which halts the dryer to prevent unsafe operation. The fault must be diagnosed and repaired before the dryer will run normally.

No, you should not continue operating the dryer with an active F:23 code. The exhaust thermistor helps the control board monitor and regulate drying temperatures. A shorted sensor means temperature readings are unreliable, which could allow the dryer to overheat without triggering appropriate safety responses. Stop using the dryer until the fault is resolved.

If only the exhaust thermistor needs replacement, parts typically cost in the range of $15 to $50 depending on the model, making it one of the more affordable dryer repairs. Labor costs for a professional technician can add $75 to $150 or more. If the control board is at fault, total repair costs can rise to the $200 to $400 range including parts and labor.

A knowledgeable DIYer can diagnose this code by using a multimeter to test the exhaust thermistor's resistance and inspecting the wiring harness for visible damage. The diagnostic process begins with TEST #4a, which walks through the thermistor circuit evaluation. If the thermistor has failed, replacing it is a straightforward repair. If the control board is responsible, that repair is more complex and may warrant professional service.

Resetting the dryer by unplugging it or cycling the power may temporarily clear the code, but it will return as soon as the control board detects the shorted thermistor circuit again. The underlying hardware fault must be corrected, either by replacing the thermistor or repairing the wiring, before the code will clear permanently.