Written by
Clara Bennett Appliance Care EditorPublished September 3, 2026Updated October 20, 2026
Content status:
Verified
Error codeZone T Open
ApplianceWine Storage
Quick answer
Zone T Open on a U-Line dual-zone wine unit points to an open zone thermistor circuit. The manual says to contact Customer Care.
Model compatibility: U-Line reuses codes across series and model years, so Zone T Open may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
Left or right zone thermistor circuit open.
Zone T Open on a U-Line wine unit means the left or right zone thermistor circuit is open.
Display variants
You may see Zone T Open, L Zone T Open, R Zone T Open or (L) (R) Zone T Open. L is the top zone or drawer on DWR/ZWC models; R is the bottom zone or drawer.
What to do
The manual lists no owner check for this code. It says to contact Customer Care. A technician checks the circuit itself.
Models
U-3036BVWCS-00B (3036 dual-zone) and DWR/ZWC models; current generation.
Related codes
Zone T Short: the same zone thermistor circuit, shorted instead of open.
Because the manual points straight to support, phone (310) 879-5776 about U-Line wine storage service in Los Angeles. Have the code, the model number and the zone letter you see ready.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your U-Line appliance?
Book a specialist visit for a clear estimate and approval before any repair.
U-Line products are compact, built-in, and often visually similar across generations. Effective repair starts with the exact model, the symptom you can…
