The compartment temperature is colder than desired. Food may be freezing in the refrigerator section. Common causes are a control set too cold, a shorted thermistor, or air duct issues.
| Possible Cause | How to Fix |
|---|---|
| Control set too cold | Press ZONE key to check setpoints; set warmer |
Zone thermistor shorted (display shows 55/-55) | Repair wiring or replace thermistor; power-cycle to clear. Resistance: ~32,500 ohms at 32°F, ~10,000 ohms at 77°F |
| Air leakage past vertical duct dividers | See TC/I Air Seals procedures in service manual |
| Air duct restriction | Adjust vertical duct dividers and/or remove blockage |
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