The condenser of a
refrigerator is one of the most crucial parts of the sub-zero
refrigerator as it removes all the heat from the food compartment, therefore it must be vacuumed out on a regular basis. If your sub-zero
refrigerator’s digital display has the phrase Vacuum Condenser
illuminated, it is time for you to vacuum your condenser coil and reset the control board. If the Vacuum Condenser phrase is illuminated and
blinking, that means the computer saved an error code and a
technician should be called immediately for service.