How do I safely unlock or reset the temperature controller on common Unifrost cabinets?

Because Unifrost cabinets use digital controllers across upright, counter, saladette and undercounter ranges, the safest approach is controller-agnostic:

Stabilise power first: plug directly into a suitable wall socket, avoid extension leads, and make sure the isolator is firmly on.

Let it restart: after power returns, wait 5 to 10 minutes to allow any built-in compressor delay to pass.

Check for a keypad lock: many controllers unlock by holding a key combination for a few seconds (commonly a Set key or Up + Down). If your display shows a padlock icon or “LOC”, that is the clue.

Acknowledge alarms: if a high-temp or power-fail alarm is present, clear or acknowledge it first, then re-check whether setpoint changes are accepted.

Avoid factory resets unless instructed: do not use any “reset to defaults” function unless you have the exact model instructions. A default reset can change parameters beyond the setpoint.

If you are unsure of the exact key sequence for your controller, use the controller label and cabinet model to get the right steps from Unifrost Support rather than trial-and-error.

Read the full guide: Why Your Unifrost Commercial Fridge Controller is Temperature Locked After a Power Cut.