Frigidaire · Refrigerator

F1

Refrigerator Sensor Fault

Severity

High

Seeing F1 on your Frigidaire Refrigerator display means the appliance self-diagnostic detected "Refrigerator Sensor Fault". Before calling a technician, work through the steps in this guide — the fix is often simpler than you think.

Owner's Summary

Your Frigidaire refrigerator's main compartment temperature sensor has failed. The fridge may run too warm, too cold, or cycle erratically without accurate feedback. Verify with an independent thermometer while arranging repair.

Symptoms

Frigidaire refrigerator compartment temperature unstable, F1 error code

Common Causes

Faulty refrigerator compartment temperature sensor
Sensor wiring fault
Connector corrosion
Control board not reading sensor correctly

How to Fix

1 Locate the compartment sensor on the rear interior wall
2 Test sensor resistance against specification
3 Inspect wiring and connector for corrosion
4 Replace sensor if reading is out of range

Tools You'll Need

Multimeter Electrical Contact Cleaner Flashlight

Most of these fixes need only basic hand tools. If your repair requires opening electrical housings or testing live components, a multimeter and basic electrical safety knowledge are essential — when in doubt, call a technician.

Technical Explanation

This sensor provides primary feedback for compressor cycling logic in the refrigerator compartment. F1 is generated when the resistance reading falls outside the valid range for normal operating temperatures.

Is It Safe to Keep Using?

Food safety concern — verify with an independent thermometer and address promptly.

Technician's Pro Tip

Frigidaire and Electrolux share many sensor designs and part numbers — checking both brands when sourcing a replacement can sometimes yield better pricing for an identical component.

Related Codes

E1 — Frigidaire Dishwasher

Thermistor Open Circuit

Medium

E2 — Frigidaire Dishwasher

Thermistor Short Circuit

Medium

E4 — Frigidaire Dishwasher

Flood Switch Activated

High

Frequently Asked Questions

What does error code F1 mean on a Frigidaire Refrigerator?

Code F1 on a Frigidaire Refrigerator indicates "Refrigerator Sensor Fault." In practice, the most common trigger is faulty refrigerator compartment temperature sensor. Severity is rated high, and typical repair costs range from $20 to $200.

Can I fix F1 myself, or do I need a technician?

Many cases of F1 can be resolved without a technician. The first step to try: locate the compartment sensor on the rear interior wall. If that doesn't clear the code, work through the remaining steps in the "How to Fix" section above before assuming a part needs replacing.

Is it safe to keep using my refrigerator with code F1 showing?

Food safety concern — verify with an independent thermometer and address promptly.

How much does it cost to repair F1 on a Frigidaire Refrigerator?

Repair costs for code F1 typically range from $20 to $200. Sensor: $20–$60; Labor: $50–$200. Costs on the low end usually reflect a DIY fix with no parts required, while the high end reflects a part replacement plus professional labor.

Estimated Repair Cost USD

$20 – $200

Sensor: $20–$60; Labor: $50–$200