Refrigerator shows E15 and may beep continuously or fail to maintain set temperatures

Safety: No internal electrical work is required for initial checks, but unplug the unit before removing panels.

Steps to handle E15:

• 1. Check doors: Ensure all doors are fully closed and gaskets are sealing properly. Clear any items preventing closure.
• 2. Allow recovery time: After heavy loading or long door openings, temperatures may rise. Allow 12–24 hours for the unit to stabilize.
• 3. Verify temperature settings: Confirm that the setpoints are appropriate (e.g., 3–5°C for fridge, -18°C for freezer).
• 4. Inspect for frost or airflow issues: Look for heavy frost on the evaporator cover or blocked air vents. Resolve defrost or fan issues if present.
• 5. Sensor check: If E15 persists with normal usage, one of the temperature sensors may be reading incorrectly. Follow procedures for E0/E1/E3 to test and replace suspect sensors.
• 6. System performance: If all sensors are good but temperatures remain high, there may be a sealed system problem (low refrigerant, compressor issue) requiring a professional technician.

Note: Do not ignore prolonged high-temperature alarms, as food safety can be compromised.