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Easy Fix
Whirlpool · Refrigerators
Freezer Thermistor Fault
Quick Answer
Error code FC on your Whirlpool Refrigerators means: Freezer Thermistor Fault. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
WRF555SDFZWRQA59CNKZWRS325SDHZWRS588FIHZWRT518SZFMWRX735SDHZ
Likely Causes
  1. Freezer compartment thermistor has failed open or shorted
  2. Wiring damage between the freezer thermistor and the main control board
  3. Loose connector at the freezer thermistor or control board
  4. Thermistor pushed out of its mounting position giving false readings
How to Fix It
1
Unplug the refrigerator and locate the freezer thermistor, typically clipped to the evaporator or mounted on the freezer wall
2
Test the thermistor with a multimeter; at 32 degrees F it should read approximately 16,000 ohms, at 0 degrees F approximately 32,000 ohms
3
Inspect the wiring from the thermistor to the control board for breaks or loose connectors
4
Verify the thermistor is securely mounted in its clip and has not fallen out of position
5
Replace the freezer thermistor if resistance is not within specification
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Parts You May Need
Freezer thermistor sensor (WPW10384183)
Mounting clip
Related Error Codes
C1C2C3CFEF
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