Maytag Washer Error Code d3/F23

The d3/F23 code on a Maytag combo washer-dryer indicates that the dryer exhaust thermistor has shorted, meaning the control board is reading a resistance below 500 ohms at the temperature sensor in the exhaust path. This corresponds to a temperature reading above 250 degrees Fahrenheit. The fault must persist for one full minute during normal operation to trigger the code, but it registers immediately when the unit is in Factory Diagnostic Mode.

The washing function of the unit may still be operable, but you should not attempt to run a drying cycle while this fault is active. The error indicates either a faulty temperature sensor or a genuine overheating condition in the exhaust path, and continuing to run the dryer without resolving the underlying cause could pose a heat or fire risk. Address the fault before resuming drying operation.

Repair costs depend on the root cause. If only the exhaust duct needs cleaning, the cost is minimal, typically just your time or a modest service call fee. Thermistor replacement parts generally fall in the range of $20 to $60, with labor adding to the total if a technician is involved. A control board replacement is the most expensive scenario, with parts and labor potentially ranging from $150 to $400 or more depending on your location and the specific unit.

Some causes of this error are DIY-accessible, such as clearing a blocked exhaust duct or reseating a loose connector. However, replacing the thermistor or diagnosing a wiring short requires using a multimeter to test resistance values in the thermistor circuit, which is a task suited to someone comfortable with basic electrical testing. If the control board is suspected, replacement and diagnosis are best handled by a qualified technician.

A power reset may temporarily clear the error code from the display, but the fault will return as soon as the control board detects the low-resistance condition again during the next drying cycle. Resetting alone does not fix the underlying problem. The thermistor, wiring, and exhaust path need to be inspected and repaired to permanently resolve the code.