most likely it is out of freon
if the compressor isnt enguaging u should check fuse, wires and connections. my daughter had a wire rubbed thru and prvented the comp. f/coming on.
Turn the compressor off.
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.
Check the ac compressor and clutch to see where the noise is coming from. Also check the compressor drive belt for wear.
The ac compressorThe ac compressor
Your AC compressor may not be coming on due to a faulty thermostat, low refrigerant levels, a malfunctioning capacitor, or an electrical issue. It is recommended to have a professional HVAC technician diagnose and repair the problem.
Yes, if the compressor's bearings are bad, usually accompanied by a roaring or squealing noise coming from the compressor's pulley.
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.