Refrigerator runs constantly and is too cold; food freezing in fresh food compartment.

Safety: Unplug the refrigerator before accessing sensors or damper assemblies.

• Check temperature settings: Ensure the fresh food temperature is set to around 3–4°C (37–39°F). Increase the setpoint if it is too low.
• Inspect air vents: Make sure vents between freezer and fridge are not blocked by food items, which can cause cold air to dump into one area.
• Check damper operation: Locate the air damper and verify it opens and closes. If stuck open, replace the damper assembly.
• Test thermistor: Measure the fresh food thermistor resistance at known temperatures and compare to spec. Replace if readings are incorrect.
• Control issue: If hardware is good but the compressor never cycles off, the main control board may be faulty and should be evaluated by a technician.