Built-In & Professional Refrigeration
Built-in and column refrigerators where cooling lives in the sealed system — compressor, evaporator and condenser fans. We trace warm-side faults to the part: a failed defrost heater or blocked drain icing the coil, a tired evaporator fan, a stuck damper, a drifting thermistor, or a worn door gasket. Matching freezer and wine columns run on the same logic.