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Frigidaire Refrigerator F3 Error Code: Temperature Sensor Failure

Quick Answer

Frigidaire F3 is a temperature sensor fault. Frigidaire refrigerators typically have 2-3 temperature sensors: one in the fresh food section, one in the freezer, and sometimes one for the defrost system. F3 does not specify which sensor - enter diagnostic mode (hold Freezer + Fridge buttons 5 seconds) to check which zone shows an error reading.

Frigidaire F3 is a temperature sensor fault. Frigidaire refrigerators typically have 2-3 temperature sensors: one in the fresh food section, one in the freezer, and sometimes one for the defrost system. F3 does not specify which sensor - enter diagnostic mode (hold Freezer + Fridge buttons 5 seconds) to check which zone shows an error reading. Frigidaire uses NTC thermistors that read approximately 10K ohms at room temperature. At freezer temperatures, the reading is higher (15-25K ohms depending on exact temp). An open circuit (OL on multimeter) or near-zero resistance confirms failure. The sensors are typically $15-25 each.

FrigidaireRefrigeratorSeverity: mediumDifficulty: intermediate75% DIY Success
Time to Fix
15–120 min
Difficulty
intermediate
Parts Cost
$15 – $25
Tools Needed
Multimeter, Flashlight

What Does the F3 Code Mean?

F3 = temperature sensor failed. Enter diagnostic mode to identify which zone. NTC thermistor ~10K ohms at room temp. Replace failed sensor ($15-25).

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Fresh food sensor open circuit40%
Freezer sensor failed24%
Sensor wire broken14%
Defrost sensor failure12%
Sensor connector corroded10%

Symptoms You May Notice

  • F3 on display
  • Temperature fluctuations in one zone
  • Compressor runs too much or too little
  • One section too warm or too cold
  • Freezer frosting unevenly

Can you reset a Frigidaire refrigerator to clear the F3 code?

Unplug for 5 minutes. Most refrigerator error codes clear on power cycle if the underlying issue is resolved.

Tools Required for Diagnosis

MultimeterFlashlightScrewdriver set

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

1

Enter diagnostic mode

Enter diagnostic mode: hold Freezer + Fridge temperature buttons simultaneously for 5 seconds. Check which zone sensor shows an error (Er or abnormal reading).

2

Access the sensor

3

Disconnect sensor and measure resistance

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name
Frigidaire Temperature Sensor5304513033 · $15–$25

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs
Labor Approach
Our Verdict
REPAIR
Estimated Cost: $20 (Parts) vs $1900 (New Machine)

Frequently Asked Questions

Can I run my Frigidaire fridge with F3?
The fridge will try to operate but without accurate temperature feedback, the compressor may run too much (freezing everything) or too little (food spoiling). Fix F3 promptly for food safety.
Which sensor is causing F3?
Enter diagnostic mode (hold Freezer + Fridge buttons 5 seconds) and check each zone reading. The zone showing 'Er' or an abnormal number (like -40 or 200) is the failed sensor.
Frigidaire sensor specs vs other brands?
Frigidaire uses 10K NTC thermistors. This is different from Whirlpool/KitchenAid RTD probes (1,080 ohms) and Bosch NTC (20K ohms). Using the wrong sensor spec will cause incorrect temperature control.

Related Frigidaire Refrigerator Error Codes

Code: HUBFrigidaire Refrigerator Error CodesCode: H1Frigidaire H1: High Temp Alarm

Same Fix Works on These Brands

Frigidaire shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

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Models Known to Experience F3 Errors

This repair applies to most Frigidaire refrigerators with this error code. Common model numbers include:

FFSS2615TS, LFSS2612TF, FGHB2868TF, FFHD2250TS, FGSS2635TF

Last verified for technical accuracy on March 15, 2026