Why is one zone of my Sub-Zero wine cooler warmer?
Dual zones run separately, so the fault sits in the drifting zone.

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Quick summary
Sub-Zero wine cooler repair in New York for 424, 427 and 315 wine storage, undercounter wine storage and beverage centers: temperature swings between dual zones, humidity and condensation on the glass door, a blank display or touch control, and vibration near the bottles.
On a dual zone unit one zone drifts while the other holds, and temperature swings reach the bottles. This is part of our Sub-Zero repair in Manhattan.

Condensation on the glass door means humidity is escaping, and labels and corks suffer first. Ice units are covered on the ice maker page.
Electronic faults are read on site. Book a wine cooler visit.

Dual zones run separately, so the fault sits in the drifting zone.
Not if it keeps returning. Humidity is escaping past the door.