Use this summary if L Temp Hi 6H+ interrupted a U-Line Refrigerator / Wine / Beverage / Combo. Orientation: Left-zone temperature more than 10°F above set point for over 6 hours. Sealed refrigeration and live-board work stay technician-only.
Reviewed by Ethan Cole · Last reviewed August 11, 2026
Written by
Ethan Cole Appliance Repair Content SpecialistPublished August 11, 2026Technically reviewed August 11, 2026
Error codeL Temp Hi 6H+
ApplianceRefrigerator / Wine / Beverage / Combo
Affected model seriesSelect U-Line electronic-control Refrigerator / Wine / Beverage / Combo appliances (verify the code map for yours)
Quick answer
Decode L Temp Hi 6H+ for U-Line Refrigerator / Wine / Beverage / Combo owners: Left-zone temperature more than 10°F above set point for over 6 hours..
Model compatibility: U-Line reuses display codes across control platforms, so L Temp Hi 6H+ may mean something different on another appliance family or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
L Temp Hi 6H+ on a U-Line refrigerator, wine, or beverage unit often means: Left-zone temperature more than 10°F above set point for over 6 hours.. Control generations vary across U-Line undercounter lines — photograph the full display and model tag before ordering parts.
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
Record the exact display string shown (including flash patterns)
Keep notes on any recent power outages, cleaning, or installs before the visit
Confirm doors/drawers are fully closed and seals are clear of debris
Perform a manufacturer-approved power restart once if safe to do so
Important safety warning. Do not open internal panels, access high-voltage wiring, or attempt sealed refrigeration work. Never bypass safety devices. If you see smoke, sparks, a burning smell, or water near electrical parts, switch the appliance off at the outlet if it is safe to do so and call a professional.
Please avoid
What not to attempt
Do not open internal panels or access high-voltage components
Do not open or attempt to recharge the sealed refrigerant system
Do not bypass door switches, safety devices or interlocks
Do not keep running the appliance if there is water near electrical parts, a burning smell or sparks
Get help
When to call a technician
If L Temp Hi 6H+ persists after the safe checks, book U-Line Appliance Repair for independent U-Line diagnosis with your model and serial. Not an official U-Line service center.
Code still showing?
Get this U-Line fault diagnosed properly
A returning error code usually needs model-specific testing. Book a visit for a clear estimate — no surprise add-ons.
Try only the safe checks and one manufacturer-approved restart. If L Temp Hi 6H+ returns, stop and book independent diagnosis with U-Line Appliance Repair.
Not reliably. Two similar U-Line displays can map L Temp Hi 6H+ differently by series.
References
Sources & references
U-Line product documentation / User Guide & Service Manual families
U-Line error/diagnostic code master list v2 (verified)
Code still showing?
Get this U-Line fault diagnosed properly
A returning error code usually needs model-specific testing. Book a visit for a clear estimate — no surprise add-ons.
Book a repair
Tell us what’s wrong — we’ll take it from there
Share a few details and we’ll confirm an appointment. Prefer to talk? Call us and we’ll help right away.
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