Maytag Washer Error Code d24/F24

The d24/F24 code means the washer's control board has detected a water temperature sensor reading outside the valid range of 23°F to 217°F (-5°C to 103°C). The temperature sensor, a thermistor, communicates with the CCU through a wiring harness connected at terminal TH2. When the signal is out of range, the washer stops operation and displays this code. The fault can originate from the sensor itself, the wiring harness, or the connector at the control board.

It is not recommended to continue running the washer while this code is active. The temperature sensor monitors water heat levels during the wash cycle, and if it is not functioning correctly, the washer may use water at an incorrect temperature or fail to regulate the heating element properly. Continuing to operate the machine could result in poor wash performance or potential damage to the appliance or fabrics.

Clearing the error code is actually the recommended first diagnostic step, and the code may not immediately return if the fault was intermittent. However, if the underlying problem with the temperature sensor, wiring harness, or connector at TH2 is not corrected, the code will return during the next wash cycle when the control board attempts to read the sensor again. A reset alone is not a repair.

A knowledgeable DIYer can address this error by starting with the recommended diagnostic steps: clear the code, unplug the washer, and perform an ohm test on the water temperature sensor and the harness connection at CCU terminal TH2. If the thermistor tests out of range or the connector is corroded, replacing the sensor or cleaning the connector are both manageable repairs. However, if the wiring harness is extensively damaged or the CCU itself is at fault, professional repair is advisable.

If only the water temperature sensor needs replacement, parts typically range from $15 to $50 depending on the model, making it one of the lower-cost repairs. If the issue is a damaged wiring harness, repair costs vary based on the extent of the damage. A faulty CCU is the most expensive scenario, with control board replacement costs generally ranging from $150 to $350 or more for parts alone, plus labor if a technician is required.