Fhiaba Temperature Regulation Failure (Overcooling)

Refrigerator and freezer are too cold; food freezing in fresh food compartment.

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.

Possible Causes

Stuck-closed air damper, Defective refrigerator temperature sensor reading too warm, Main control board not cycling compressor correctly, User settings set too cold

How to Fix / Troubleshooting

Safety first: Unplug the unit before accessing sensors or control boards.

Step 1 – Check settings:

Verify that the temperature setpoints are within recommended ranges (e.g., +4 °C for refrigerator, -18 °C for freezer).

Step 2 – Inspect air damper:

Locate the air damper and check if it is stuck open, allowing excessive cold air into the refrigerator.
If the damper does not respond to temperature changes, it may need replacement.

Step 3 – Test refrigerator sensor:

Measure the NTC sensor resistance and compare to the Fhiaba chart.
Replace the sensor if it reads warmer than actual temperature (low resistance).

Step 4 – Control board:

If damper and sensor are good, the main control board may be misregulating compressor run time and should be evaluated by a technician.

Repair Difficulty

Medium 3/5

Required Part

Air Damper Assembly

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