Fisher & Paykel Refrigerator Error Code 6

Error code 6 on a Fisher & Paykel refrigerator indicates a defrost sensor hot fault. The defrost temperature sensor is reading a resistance below 660 Ohms, which is outside the normal operating range. This points to a faulty sensor or a wiring issue in the sensor circuit. The sensor will need to be tested and replaced if it is confirmed defective.

A faulty defrost temperature sensor can interfere with the refrigerator's automatic defrost cycle. If defrost cycles do not complete correctly, ice can accumulate on the evaporator coil, reducing cooling performance over time. It is best to have the fault addressed promptly to prevent potential food spoilage or further component damage.

Resetting the refrigerator may temporarily clear the error code display, but the fault will return if the underlying sensor or wiring issue has not been resolved. Because the code is triggered by an out-of-range resistance reading from a hardware component, the root cause must be corrected before the error will clear permanently. A replacement sensor or repaired wiring is required for a lasting fix.

A knowledgeable DIYer can diagnose this fault by disconnecting the defrost temperature sensor and measuring its resistance with a multimeter. If the reading is below 660 Ohms, the sensor needs to be replaced. Wiring harness inspection is also straightforward, but working inside a refrigerator near electrical components carries some risk, so comfort with basic appliance repair is recommended before attempting this yourself.

If only the defrost temperature sensor requires replacement, parts typically range from $20 to $60 depending on the specific model. If professional labor is needed, total repair costs including parts and service time generally fall in the range of $100 to $250. Costs can be higher if wiring harness damage or control board issues are also found during diagnosis.