A/C System Archives - AutoSuccessOnline
It’s Gettin’ Hot in Here: A/C Switches and Clutch Operation

In a conventional mobile air-conditioning system, the compressor runs at full capacity whenever the clutch is engaged. In this “all-or-nothing” system design, the compressor cycles on and off as needed to circulate the refrigerant and lubricant through the system. Switches, relays and transducers control the clutch, keeping the system operating smoothly. Here’s what you need to know to prevent catastrophic failure.