Written by
Clara Bennett Appliance Care EditorPublished September 3, 2026Updated October 20, 2026
Content status:
Verified
Error codeTemp Hi 6H+
ApplianceWine Storage
Quick answer
Temp Hi 6H+ on a U-Line dual-zone wine unit means a zone has been well above its set point for hours. The manual asks you to check the door.
Model compatibility: U-Line reuses codes across series and model years, so Temp Hi 6H+ 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) above set point for over 6 hours.
Your U-Line wine storage display is showing Temp Hi 6H+. The unit has noticed that one of its zones has stayed 10°F (5°C) above the set point for more than 6 hours.
What the display shows
You may see the code as Temp Hi 6H+, L Temp Hi 6H+, R Temp Hi 6H+ or (L) (R) Temp Hi 6H+. On the dual-zone models, L is the top zone or drawer and R is the bottom zone or drawer, so the letter tells you which side is running warm.
What the manual says to do
The manual gives a single owner action: verify the door is closed and sealing. If the code persists, contact U-Line Customer Care.
Models covered
This applies to the U-3036BVWCS-00B (3036 dual-zone) and to DWR/ZWC models. It is a current-generation code.
Related codes
Temp Hi 12H+: the same warm condition, lasting longer.
Temp Lo 6H+: the opposite problem, a zone running cold.
Door Open 5M: a door switch that stays open, which ties in with the door check.
U-Line wine storage service in Los Angeles
If Temp Hi 6H+ stays on after you have checked the door, call (310) 879-5776 for U-Line wine storage service in Los Angeles. Have the code, your model number and a note of the zone it appears on ready when you call.
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…
