Fisher & Paykel Refrigerator Error Code F1 — Freezer Temperature Sensor Fault
What this means
Error code F1 on Fisher & Paykel refrigerators indicates the freezer temperature sensor (thermistor) has returned a reading outside the expected range to the main control board. This sensor monitors the freezer compartment temperature and provides data for the control board to regulate the compressor and fan. A disconnected, short-circuited, or failed sensor will produce this code. The refrigerator may run continuously or not run at all depending on how the control board interprets the faulty reading.
Alternate codes: Error F1, Fault F1, Alarm F1
Step-by-step fix
4 stepsReset the refrigerator
Unplug the refrigerator for 5 minutes and plug it back in. Check if the F1 code clears. A power fluctuation can sometimes cause a false sensor reading that clears after a reset.
After a reset, wait at least 10 minutes for the control board to take a new temperature reading before assuming the error has returned.
Locate and test the freezer sensor
Open the freezer compartment. The temperature sensor is usually attached to the evaporator cover or clipped to the evaporator coil behind the back panel of the freezer. Remove the necessary panel to access it. Disconnect the sensor wiring and test resistance with a multimeter — at freezer temperature (about 0°F / -18°C), the sensor should read approximately 15,000–16,000 ohms.
Let the sensor warm to room temperature and test again — at 77°F (25°C) it should read about 5,000 ohms. If both readings are reasonable, the sensor is likely fine and the issue may be wiring.
Inspect the sensor wiring
Trace the sensor wire from the freezer compartment back to where it connects to the main control board. Check for pinched wires (often caused by panels being reinstalled after defrosting), corroded connectors, or broken wires.
Ice formation near the evaporator can trap and damage sensor wires over time. Check for ice buildup around the wire routing path.
Replace the sensor
If the sensor reads out of range, replace it. The sensor is typically held by a clip or bracket. Install the new sensor in the same position, route the wire along the original path, and reconnect. Reassemble the freezer panel and restore power.
Ensure the sensor probe is firmly clipped in its original mounting position — a sensor hanging loose in the freezer will give inaccurate readings.
When to call a professional
If the sensor and wiring test fine but F1 persists, the control board input may be faulty. A Fisher & Paykel technician can run diagnostics to determine if the board needs replacement.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
Learn more about our sourcesParts you may need
Freezer Temperature Sensor
Part #FP882145 · $15–$35
Required if sensor reads out of specification
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