U-Line Refrigerator Temp Lo 6H+: Zone Cold Over Six Hours
Temp Lo 6H+ means a zone has held about 10 degrees F under the set point for over 6 hours, so it is running colder than you asked it to.
What does U-Line refrigerator & drawers code Temp Lo 6H+ mean?
Temp Lo 6H+ is an overcooling alert shown by the digital control of a U-Line refrigerator. The control raises it when a zone has held about 10 degrees F colder than the set point for more than 6 hours. Overcooling is less urgent than a warm zone, but it can freeze produce, drinks and dairy. The cause may be a changed set point, a thermistor reporting the temperature wrongly, or a control or damper problem that lets in too much cold air.
Temp Lo 6H+ at a glance
- Code
- Temp Lo 6H+
- Appliance
- U-Line refrigerator & drawers
- Applies to
- U-Line digital control, temperature zone
- Type
- Low urgency
- Can you clear it yourself?
- Sometimes, after the safe checks below
- Most likely cause
- A set point that was lowered by accident or by a cleaning wipe on the control
What you may notice with Temp Lo 6H+
- Temp Lo 6H+ appears on the display
- Drinks or produce are colder than usual or partly frozen
- Frost or ice crystals show on stored items
- The zone feels colder than the set point suggests
How the refrigerator & drawers detects Temp Lo 6H+
A U-Line refrigerator control keeps a zone near the set point by cycling cooling on and off. It also checks for the opposite problem. If the measured temperature stays well under the target, a timer starts, and after more than 6 hours it shows Temp Lo 6H+.
The alert uses a gap of about 10 degrees F below the set point. Normal cycling never drifts that far for that long. Since the control sees only its own sensor value, the message can come from real overcooling or from a sensor that reads colder or warmer than the truth. A changed set point is the easy first thing to rule out before looking at the damper or control.
Likely causes of Temp Lo 6H+
- A set point that was lowered by accident or by a cleaning wipe on the control
- A zone thermistor that reads warmer than the true temperature, so cooling keeps running
- A control or damper problem that sends too much cold air into the zone
Can you keep using the refrigerator & drawers with Temp Lo 6H+?
You can keep using the unit while you check, since being too cold is not a safety hazard. Watch for frozen produce, bottles that could burst and wasted energy. Adjust the set point if it was moved by mistake and measure with a thermometer. If the zone keeps freezing even at the correct setting, switch it off and have it looked at.
What you can safely check
- If you plan to move anything near the vents, unplug the unit or switch off its breaker first.
- Read the set point on the display and compare it with the temperature you want.
- Check that the door is closed and that nothing blocks the interior vents.
- Put a refrigerator thermometer in the zone and compare it with the display.
- If Temp Lo 6H+ stays, call us.
What our technician does for Temp Lo 6H+
- Compare the thermistor reading with a reference thermometer
- Check the control and its settings for correct operation
- Test the damper that directs cold air into the zone
- Replace the sensor or damper if it is out of range
How to keep Temp Lo 6H+ from coming back
- Check the set point after cleaning the display, since a wipe can bump a setting.
- Keep delicate produce away from the vents where the coldest air enters the zone.
Technical reference
- Code
- Temp Lo 6H+
- Appliance
- U-Line refrigerator & drawers
- Control family
- U-Line digital control, 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.
Related U-Line refrigerator & drawers error codes
Temp Lo 6H+ questions
What does Temp Lo 6H+ mean?
It means a zone has been about 10 degrees F colder than the set point for more than 6 hours. The control alerts you because the zone is overcooling rather than holding the temperature.
Can a wrong set point cause Temp Lo 6H+?
Yes, a set point lowered by accident is the simplest cause. Check the display, correct it, and see whether the zone settles back after a few hours.
Is Temp Lo 6H+ harmful to the refrigerator?
Not directly, but it can freeze items you wanted kept cool and waste energy. If the setting is right and it still happens, the sensor or damper needs testing.
Is Temp Lo 6H+ the opposite of Temp Hi 6H+?
Yes. Temp Hi means the zone is about 10 degrees F too warm, and Temp Lo means too cold. The first threatens food safety more, while the second mainly freezes items and wastes energy.
Will Temp Lo 6H+ clear on its own?
If a set point change was the cause and you fix it, the alert should clear once the zone returns near target. If it persists after that, a sensor, control or damper problem is likely.
Need help with Temp Lo 6H+?
A technician finds the cause at your bar or lanai and puts the price in writing before any part comes out.