n restart the system. Some models may require using a diagnostic tool or controller to clear the fault memory manually. What should I do if my McQuay unit displays a persistent fault code? If a fault code persists, first rev
r-cooled. Evaporator: Absorbs heat from the process or building space. Expansion device: Regulates refrigerant flow, such as thermostatic expansion valves or electronic expansion valves. Control panels and senso
ect refrigerant levels Examine compressor and fans System Not Turning On Confirm power supply and circuit breakers Test control panel and wiring Look for blown fuses or tripped relays Unusual Noises Identify source
