There could be several reasons why your AC compressor won't turn on. Some common causes include a faulty thermostat, a blown fuse or circuit breaker, a malfunctioning capacitor, or a problem with the compressor itself. It's best to have a professional HVAC technician diagnose and repair the issue to ensure it is fixed correctly.
Fully charged? Bad pressure switch on accumulator/drier? Blow fuse?
most likely it is out of freon
Turn the compressor off.
why wont the ac compressor shut off stays on on all settings
For residential equipment it is 24 volts
Check the Freon pressure first. The AC compressor will not turn on if the Freon pressure is too low.
The ac compressorThe ac compressor
The compressor wont turn if the freon levels are too low! It has a cutoff so if the freon all escapes the system the compressor wont be damaged.
the clutch on your A/C compressor needs to be replaced.
the ac belt or the compressor bearings are going bad
IT should turn freely when the a/c is not turned on.
If it has AC assist and the compressor is shot, cut the belt or disconnect the defrost from the compressor.