There are several possible reasons why your commercial freezer may not be cooling properly. One reason is a faulty thermostat or main control board. You may need to test these parts more thoroughly. If they still don’t work, you may need to replace them. It is also possible that you accidentally set the temperature higher than recommended by the manufacturer. In this case, you should try to lower the temperature to a reasonable level.
Another common reason why the freezer does not work is a damaged compressor. The compressor is responsible for compressing the refrigerant and circulating it through the coils. Without this part, the freezer will not cool properly. Check that all other parts are working properly before addressing the compressor. You may need to use a multimeter to test the compressor to make sure it is working properly.
Another reason for commercial freezer failure is a faulty thermostat. This problem can be caused by an open circuit or a blown fuse. The temperature may be too high or too low, or it may be caused by a dirty compressor or door seals.
Other causes of freezer failure include user error. As the freezer ages, parts wear and affect its ability to freeze. While most of these parts are easy to replace yourself, some require professional repair. The first thing to do is check the thermostat. If it doesn’t click when it’s on the lowest setting, you should replace it.