Written by
Clara Bennett Appliance Care EditorPublished September 3, 2026Updated October 20, 2026
Content status:
Verified
Error codeTemp Lo 12H+
ApplianceWine Storage
Quick answer
Temp Lo 12H+ shows when a zone of a U-Line dual-zone wine unit has run well below set point for half a day or more.
Model compatibility: U-Line reuses codes across series and model years, so Temp Lo 12H+ 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 temperature 10°F (5°C) below set point for over 12 hours.
Temp Lo 12H+ on a U-Line wine unit tells you a zone has been running too cold: 10°F (5°C) below its set point for over 12 hours.
Reading the message
The display can read Temp Lo 12H+, L Temp Lo 12H+, R Temp Lo 12H+ or (L) (R) Temp Lo 12H+. On DWR/ZWC models the L zone is the top zone or drawer and the R zone is the bottom one.
The manual’s advice
Verify that the door is closed and sealing. When the code keeps coming back, the manual says to contact Customer Care.
Which models
U-3036BVWCS-00B (3036 dual-zone) and DWR/ZWC models, current generation.
Other codes to compare
Temp Lo 6H+: the same cold condition at the 6 hour mark.
A persistent Temp Lo 12H+ is a reason to call (310) 879-5776. Our U-Line wine storage service covers Los Angeles; tell us the code, the model number and what you checked on the door.
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…
