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Error code reference

U-Line Freezer Error Code (L) (R) Temp Hi 6H+

Left or right zone temperature +10°F (+5°C) over set point for over 6 hours.

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What the (L) (R) Temp Hi 6H+ error code actually means

Your U-Line freezer is showing this error because one side of the unit has been too warm for more than six hours straight. The freezer cannot get the temperature down to where you set it, which could affect the food stored inside. Start by making sure the freezer door is completely closed and that nothing is blocking it from sealing properly.

Diagnostic procedure

The full (L) (R) Temp Hi 6H+ procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Verify door is closed and sealing. Contact Customer Care if persistent.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of (L) (R) Temp Hi 6H+

Ranked by how often they cause this code
  1. 1Door not fully closed or poor gasket seal
  2. 2Frost-blocked evaporator
  3. 3Dirty or obstructed condenser
  4. 4Evaporator fan motor failure
  5. 5Low refrigerant charge or refrigeration system fault

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Questions people ask about (L) (R) Temp Hi 6H+

What does (L) (R) Temp Hi 6H+ mean on a U-Line freezer?
This code means that the left or right zone of your U-Line freezer has been running at least 10°F (5°C) above your set temperature for more than six consecutive hours. The L or R prefix tells you which compartment is affected. It is a sustained temperature fault intended to alert you before food safety becomes a serious concern. Checking that the door is closed and sealing properly is the first step.
Will resetting my U-Line freezer clear this error code?
A reset may clear the displayed code temporarily, but the error will return if the underlying cause has not been corrected. Because this fault requires a sustained out-of-range condition lasting over six hours, the code reappearing after a reset is a strong indicator that a component or airflow issue needs to be addressed. Resetting alone is not a repair.
How much does it cost to repair a U-Line freezer showing this error?
Repair costs vary significantly depending on the root cause. Cleaning the condenser or adjusting a door gasket may cost little to nothing in parts, while a gasket replacement typically runs in the range of $30 to $80 in parts. A failed evaporator fan motor repair can range from $100 to $250 including labor, and refrigerant system repairs involving a compressor or leak diagnosis can run $300 to $600 or more depending on your location and the technician's rates.
How do I fix the (L) (R) Temp Hi 6H+ error on my U-Line freezer?
Start by confirming the door is fully closed and that the gasket seals tightly against the cabinet on all sides. Check that the condenser area is clean and that airflow around the unit is not obstructed. If the error persists after these checks, the issue may involve the evaporator fan, defrost system, or refrigerant circuit, and U-Line Customer Care should be contacted for further guidance.
Is my food still safe when the (L) (R) Temp Hi 6H+ error appears?
Food safety depends on how far above the set point the temperature has risen and for how long. Since the code activates after six or more hours at 10°F or more above target, frozen food in the affected zone may have partially thawed. Check the condition and texture of the stored food carefully, and when in doubt, follow food safety guidelines for partially thawed freezer items.

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