Refrigerator displays H1 for the fresh food or freezer temperature; unit may shut down cooling temporarily.

Safety first: No internal electrical work is required for basic checks, but unplug the unit if removing panels.

Step 1: Verify door closure

• Ensure all doors and drawers close fully and that nothing inside is blocking closure.
• Check that the door switch is being depressed when the door is closed.

Step 2: Check gasket condition

• Inspect the door gaskets for tears, gaps, or hardened sections.
• Use the paper test: close a sheet of paper in the door and gently pull. If it slides out easily, the seal is weak in that area.

Step 3: Allow recovery time

• If the door was left open or the unit was recently loaded with warm food, allow 12–24 hours for temperatures to normalize.
• Do not adjust controls repeatedly; set to recommended settings and wait.

Step 4: Sensor check (if persistent)

• If H1 persists after temperatures are clearly cold, the thermistor may be reading incorrectly.
• Test and replace the appropriate thermistor (fresh food or freezer) as needed.

When to call a technician: If temperatures are not dropping despite continuous operation, there may be a sealed system or control issue requiring professional service.