FF SH
Frigidaire Professional Fresh Food Thermistor Short Circuit

Fresh food temperature display shows SH; refrigerator section may be too cold or control unstable.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Shorted fresh food thermistor, Water intrusion at sensor, Pinched harness behind liner, Failed main control board

How to Fix / Troubleshooting

Safety First: Unplug the refrigerator before accessing the sensor.

  • 1. Inspect sensor: Remove the fresh food thermistor cover and check for condensation or corrosion.
  • 2. Clean and reseat: Dry the area, clean the connector, and reseat the plug.
  • 3. Replace thermistor: Install a new fresh food thermistor if the error persists.
  • 4. If still faulty: The main control board may require replacement.
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Repair Difficulty

Medium 3/5

Required Part

Fresh Food Thermistor
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