Display shows H1 for the refrigerator or freezer; indicates temperature has been too high.

Safety first: No panel removal is needed for basic checks. If you suspect a cooling system fault, disconnect power before accessing rear components.

• Confirm door closure: Ensure all doors are fully closed and gaskets are sealing properly.
• Allow recovery time: If you recently loaded warm groceries or had a power outage, allow 24 hours for temperatures to stabilize.
• Check for airflow: Listen for the evaporator and condenser fans running when the compressor is on. Lack of fan noise may indicate a fan failure.
• Inspect for frost: Look for heavy frost on the freezer back wall, which suggests a defrost problem.
• Clear the alarm: Press and hold the Alarm Reset or similar button to silence and clear the H1 code. If it returns and temperatures remain high, further diagnosis of the sealed system, fans, or defrost system by a technician is recommended.