Fisher & Paykel Refrigerator Error Code 12

Error code 12 indicates a compartment sensor hot fault, meaning the compartment temperature sensor is reading a resistance below 660 Ohms. This is outside the acceptable range for the sensor and signals that the thermistor has failed or there is a wiring issue. The refrigerator cannot accurately monitor compartment temperature until the fault is resolved.

A faulty temperature sensor means the control board cannot reliably regulate compartment temperature. This could allow the compartment to run too warm or too cold without the system detecting the problem. It is best to address the fault promptly to avoid food spoilage or further issues.

A reset may temporarily clear the error code from the display, but it will not fix the underlying sensor fault. If the thermistor resistance remains below 660 Ohms, the error code will return once the control board performs its next sensor check. The faulty sensor or wiring must be repaired or replaced to permanently clear the code.

Start by measuring the resistance of the compartment temperature sensor with a multimeter. If the resistance is below 660 Ohms, the sensor is faulty and needs to be replaced. Also inspect the sensor wiring harness and connector for any signs of shorts, corrosion, or physical damage before installing a new sensor.

If the repair only requires a new compartment temperature sensor, the cost is typically low, with parts generally ranging from $15 to $60 depending on the model. If a technician is needed for diagnosis and installation, total repair costs typically fall in the range of $100 to $250. Repairing damaged wiring may add some labor time but usually keeps costs within the lower end of that range.