Refrigerators High Severity
F2 Appliance Error Code

Fisher & Paykel Refrigerators F2 Error: Freezer thermistor fault

Fisher & Paykel refrigerator error code F2 is a high-severity fault meaning Freezer compartment thermistor fault. A freezer thermistor fault means the controller cannot guarantee the freezer stays at or below 0°F (-18°C). Power-cycling will clear a transient F2 fault.

By Denis Yuzhaev Lead Appliance Repair Specialist & Technical Writer

~50%

DIY Fixable

From $120

Typical Repair Cost

1–3 hrs

Pro Repair Time

Quick Assessment

Answer to continue safely

Is it safe to keep using?

No. A freezer thermistor fault means the controller cannot guarantee the freezer stays at or below 0°F (-18°C). Frozen food safety is at risk. Transfer frozen items to an alternative freezer until the fault is resolved.

Can I reset the code?

Yes. Power-cycling will clear a transient F2 fault. If the code returns within one compressor cycle, the sensor or wiring requires physical repair before the refrigerator can be trusted to maintain safe frozen-food temperatures.

When to stop immediately?

Stop if you notice: Frozen food shows any sign of thawing or partial defrost, Freezer temperature rises above 10°F (-12°C).

Symptoms You May Notice

F2 shown on display

The control panel displays F2 continuously, sometimes alternating with the current temperature reading.

Freezer not maintaining temperature

Frozen food begins to soften because the controller cannot regulate the compressor without sensor feedback.

Compressor runs continuously

In some fault states the controller defaults to continuous compressor operation, causing ice buildup and excessive energy use.

Possible Causes

1

Failed freezer thermistor

The NTC thermistor in the freezer section has failed, returning a resistance value outside the controller's acceptance range.

DIY Possible
2

Damaged sensor wiring

Wiring from the freezer thermistor to the main PCB has been damaged by ice formation or physical contact with a shelf.

DIY Possible
3

Moisture ingress at connector

Condensation or frost melt has entered the sensor connector, causing corrosion and intermittent resistance changes.

DIY Possible
4

Control board input failure

The main PCB thermistor input has failed, producing a fault code even with a functioning sensor.

Requires Professional

Safe Checks You Can Do

These checks are safe for homeowners. No disassembly required. Do not remove panels or access internal components.
  1. 1

    Power-cycle the unit

    Disconnect power for 5 minutes, restore, and check if F2 clears. Monitor the freezer temperature for the next hour.

    Note whether the code returns immediately or only after the unit runs for a while — this helps diagnose intermittent vs. permanent failure.

  2. 2

    Check for frost buildup near sensor

    Inspect the freezer rear wall and evaporator cover for excessive ice that may be physically encasing the sensor probe.

    Heavy frost around the sensor can alter its reading; a manual defrost may temporarily resolve the code.

  3. 3

    Inspect sensor and connector

    After unplugging and allowing the freezer to reach room temperature, remove the evaporator cover and inspect the thermistor connector for moisture, corrosion, or loose pins.

    Dry the connector thoroughly with compressed air before reconnecting.

    Tools required

When to Call a Professional

Contact a qualified technician if:

  • Sensor is located behind the evaporator coil assembly, requiring refrigerant-system awareness to access safely
  • Code persists after thermistor replacement, indicating a board fault
  • Ice maker also stops functioning alongside F2

Need Professional Help?

Find qualified technicians in your area for proper diagnostics and repair.

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More Refrigerators Error Codes

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2 1 5 DOOR ICE C1 FAN FF DEF F3 F1