
The 427 is a full-size wine storage unit from Sub-Zero’s 400 Series with dual temperature zones, a full-view UV-resistant glass door as standard, and features like Sabbath mode and a home security tie-in. It’s discontinued.
A door seal no longer holding against the cabinet is the issue reported most on a 427, and it can lead directly to a unit that runs constantly without ever settling into a normal cycle. Condensation forming on the inside face of the glass door is the other common call, usually tied to that same door seal or to the glass pane’s insulating performance over time.
Key Features
- Full-size wine storage unit
- Dual temperature zones, full-view UV-resistant glass door (standard), lighted display shelf, divider gasket, home security tie-in, Sabbath mode
- 400 Series wine storage generation, no longer produced
- On the 427, OEM parts generally still available to order, though legacy items take longer to arrive than parts for a current model
Most Common Issues on This Model
Door seal no longer holding against the cabinet
Unit running constantly without settling
Condensation forming on the inside face of the glass door, as recorded for the 427.

