Frequent beeping alarm without obvious temperature problem

Safety: Most alarm troubleshooting can be done with power on; avoid touching live terminals.

• Check door switch and gasket: Ensure the door fully closes and the switch is actuated. Adjust hinges or replace gasket if needed.
• Verify setpoints and alarm settings: Some models allow alarm temperature adjustments. Set them appropriately for your storage needs.
• Stabilize environment: Reduce frequent door openings and avoid placing the unit in areas with large ambient temperature swings.
• Control board: If alarms continue without cause, the buzzer or alarm circuit on the control board may be faulty. Replace the main control PCB if necessary.