U-Line Refrigerator L Temp Lo 6H+: Left Zone Too Cold
L Temp Lo 6H+ shows that the left zone has stayed roughly ten degrees F under the set point for over six hours, so that side is overcooling.
What does U-Line refrigerator & drawers code L Temp Lo 6H+ mean?
L Temp Lo 6H+ is an overcooling alert for the left side of a U-Line refrigerator with two zones. The L marks the left side. It appears when the left zone has been roughly ten degrees F colder than the set point for over six hours. This is milder than a warm alert, but it can freeze drinks and produce on that side. A changed left set point, a thermistor reading wrongly, or a control or damper problem are the likely causes.
L Temp Lo 6H+ at a glance
- Code
- L Temp Lo 6H+
- Appliance
- U-Line refrigerator & drawers
- Applies to
- U-Line digital control, left temperature zone
- Type
- Low urgency
- Can you clear it yourself?
- Sometimes, after the safe checks below
- Most likely cause
- A left set point that was lowered by accident or by a bump on the control
What you may notice with L Temp Lo 6H+
- L Temp Lo 6H+ appears on the display
- Left side drinks or produce are colder than usual
- Items on the left show frost or start to freeze
- The right side feels normal by comparison
How the refrigerator & drawers detects L Temp Lo 6H+
The control on this U-Line refrigerator normally cycles left-side cooling on and off to stay near the left set point. It also watches for overcooling. When the left zone stays well under target, a timer starts, and after more than 6 hours it shows L Temp Lo 6H+.
The alert uses a gap of roughly ten degrees F below the set point, further than regular cycling goes. Because it relies on the left sensor value, the message can come from a left zone that is truly too cold or from a sensor that misreports. Checking whether the left set point was changed is the quick first step before suspecting the damper or the control.
Likely causes of L Temp Lo 6H+
- A left set point that was lowered by accident or by a bump on the control
- A left zone thermistor that reads warmer than the truth, so cooling keeps running
- A control or damper problem sending too much cold air to the left
Can you keep using the refrigerator & drawers with L Temp Lo 6H+?
You can keep using the unit while you look into it, because a cold zone is not a safety hazard. Watch for frozen produce and bottles that could burst on the left. Correct the left set point if it moved by mistake and measure with a thermometer. If the left keeps freezing at the right setting, switch it off and arrange service.
What you can safely check
- Unplug the unit or switch off its breaker before you reach behind items near the left vents.
- Read the left set point on the display and compare it with the temperature you want.
- Check that the left door closes and that no item blocks the vents.
- Compare a refrigerator thermometer in the left zone with the display.
- If L Temp Lo 6H+ stays, call us.
What our technician does for L Temp Lo 6H+
- Compare the left thermistor reading with a reference thermometer
- Check the control's left zone settings and cooling cycle
- Test the left damper that directs cold air
- Swap the left sensor or damper when it tests out of range
How to keep L Temp Lo 6H+ from coming back
- Check the left set point after wiping the display, since a touch can change it.
- Keep delicate produce away from the left vents where the coldest air comes in.
Technical reference
- Code
- L Temp Lo 6H+
- Appliance
- U-Line refrigerator & drawers
- Control family
- U-Line digital control, left temperature zone
- Maker documentation
- U-Line owner manuals and support
- Checked
- November 2026
Code meanings come from the maker’s documentation and our own repair work; we do not reprint the maker’s document. Confirm the full model number before acting on a code. We are an independent repair company, not affiliated with U-Line Corporation.
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L Temp Lo 6H+ questions
What does L Temp Lo 6H+ mean?
It means the left zone has been roughly ten degrees F colder than the set point for over six hours. The L marks the left side as the one overcooling.
Can a changed set point cause L Temp Lo 6H+?
Yes, a left set point lowered by accident is the simplest cause. Check the display, correct it, and see whether the left side warms back to target over a few hours.
Is L Temp Lo 6H+ harmful to my food?
It can freeze produce, eggs and drinks on the left side, which spoils texture or splits bottles. It is less urgent than a warm alert, but move delicate items until it is fixed.
Is L Temp Lo 6H+ the opposite of L Temp Hi 6H+?
Yes. Hi means the left zone is roughly ten degrees F too warm, and Lo means too cold. The warm alert threatens food safety more, while the cold one mostly freezes items and wastes energy.
Will L Temp Lo 6H+ clear on its own?
If a set point mistake was the cause and you fix it, the alert should clear once the left side returns near target. If it stays, a sensor, control or damper problem is likely.
Need help with L Temp Lo 6H+?
A technician finds the cause at your bar or lanai and puts the price in writing before any part comes out.