How do I stop or mute the alarm sound without damaging the fridge?

You can usually mute the sound without harming the fridge, as long as you still address the cause of the alarm.

Acknowledge/mute at the controller: most digital controllers have an alarm key or a key combination that silences the buzzer while keeping the alarm visible. If you are unsure, do not start changing setpoints or parameters. Instead, identify your controller type from the display and use the correct manual.

Do not power-cycle repeatedly: switching the fridge off and on to stop beeping can delay pull-down, mask an underlying fault, and can be hard on components.

Do not disable alarms permanently: muting is fine temporarily, but leaving alarms disabled can create a food-safety risk.

If you need to contact support, take a photo of the display showing the icon/code, plus a photo of the model/serial label inside the cabinet, and note what changed recently (power cut, relocation, heavy loading, door left open).

Read the full guide: Troubleshooting Unifrost Commercial Fridge Controller Beeping & Flashing.