16+ Sub Zero Control Panel Images. The alarm key on the control panel. If lights are out in the unit, the control may appear unresponsive as the display panel is backlit.

Verify the unit is not in sabbath mode. Subzero 4204292 dispenser control panel. Verify that the zone is not turned off.

If lights are out in the unit, the control may appear unresponsive as the display panel is backlit.

Subzero 4204292 dispenser control panel. Subzero 4204292 dispenser control panel. The alarm key on the control panel. The control panel was $300, but it saved a unit that costs $5000 new.