Display shows AL or an alarm icon; audible alarm sounds; temperature may be high or door may be open.

Safety first: No internal work is required to silence the alarm, but always unplug before removing any panels.

Step-by-step checks:

• 1. Check door status: Ensure the door is fully closed and the gasket is sealing properly. Remove any items blocking closure.
• 2. Silence alarm: Press the alarm or reset button to silence the buzzer. The alarm icon may remain until conditions normalize.
• 3. Verify temperature: Use a freezer thermometer to check actual temperature. If it is within the correct range, the alarm may be due to a sensor or control issue.
• 4. Inspect door switch: If the alarm indicates door open when the door is closed, test the door switch for proper operation and replace if faulty.
• 5. Monitor over 24 hours: If the alarm recurs frequently without obvious cause, further diagnosis of sensors and control board is needed.

When to call a technician: If the alarm persists with correct temperature and a properly closed door, contact a Gram technician to check sensors and control electronics.