Dual-zone wine refrigerators manage two separate temperature ranges semi-independently, which is good news when only one zone is misbehaving — it usually narrows the problem down significantly.
Is It Actually One Zone, or the Whole Unit?
Confirm with a separate thermometer before assuming — a display that reads wrong for one zone but not the other points to that zone’s sensor specifically.
Common Zone-Specific Causes
A zone-specific temperature sensor, a stuck damper controlling airflow between zones, or a seal issue local to that section of the cabinet are the most common causes — not the compressor, which serves both zones.
Next Steps
This is a targeted, usually affordable repair. See our wine refrigerator repair page.