If you have a walk in cooler or freezer in your restaurant, then you may want to make sure that the appliance works well to freeze your food. However, the appliances sometimes need some advanced maintenance, and some fairly telltale issues can crop up. For example, the evaporator can stop working properly. If you want to know about some signs that the evaporator is not functioning well, then keep reading.
The Compressor Continually Runs
A compressor pump that runs all the time can be a sign of several different problems. While this may mean that there is not enough refrigerant running through the evaporator coil and a recharge is necessary, it is far more likely that the evaporator is completely congested with ice buildup. When this happens, heat transfer cannot occur as easily between the cooling coils and the air. Far less cooled air is pumped into the freezer unit and the compressor compensates for this by continually running and forcing refrigerant through the coils.
If you hear the compressor running all the time, then you should know that this can place a great deal of stress on this part. This is an issue because the compressor can die and the replacement is often quite expensive.
Take a quick peak at the evaporator coil to see if it is completely covered in ice. If so, complete a manual defrost. You can do this in two different ways. You can turn the dial on the defrost setting to manual mode or you can remove the contents of the freezer and allow the ice to melt naturally.
The Drain Is Clogged
Most walk in freezers have sophisticated drains that allow water to release from the appliance once the unit goes through the defrost cycle. However, drains can sometimes become clogged. The clogging is often caused by ice building up within the drain line itself. You may need to add a warming line to the drain to help release the clog formation.
Clogging is an issue because water cannot escape once the freezer goes into defrost mode. The water builds up, freezes, and accumulates around the evaporator coil. This causes similar issues as to when the evaporator is unable to defrost.
Cracks in the drain lines can cause similar problems, so make sure to contact an appliance repair specialist to inspect the line to see if there any issues.
If you are unsure about the specific reason for the freezer problem, then speak with your repair specialist, such as from Golden State Commercial Equipment Repair, so that a proper assessment can be made.