pressure switch located on the accumulator
A simple answer would be; it turns on the ac compressor.
Assuming you are asking about the ac compressor, there would be two possibilities, blown fuse or low on freon.
Without an AC condenser, yes. I advise disconnecting the AC compressor so it won't run dry on lubricant.
IT should turn freely when the a/c is not turned on.
if your talking about the serpentine, you buy a new one
what causes compressor lockout in voager rooftop unit.
The ac compressorThe ac compressor
It could, the computer will disengage the ac compressor if the engine temp is too high.
The ac compressor pump may be seized.
No oil in compressor - wether it works or not, it still needs that special ac oil -
Bad clutch on compressor, unplug the wires from the AC compressor, replace fuse if doesnt blow fuse its in compressor, if blows then gounded wire
Improperly programmed programmable thermostat.
Usually, on most cars, this means that the weather is cool or that there is insufficient refrigerant in the system. It can also be caused by a restriction in the AC system or high temperature or excessive amount of refrigerant in the system.
Make sure the AC isn't over-filled.
chevrolet and other GM use the HR100T AC compressor
Location ac compressor relay 940 volvo
New AC compressor for my 93 Ranger was $156.