Hi and welcome to FixYa, I am Kelly. Your hearing the compressor Thermal overload cycle every few minutes for no more than 45 seconds. The compressor is not starting at all or it is not cycling from the start winding to the run winding so the KliXon thermal overload is tripping. That switching of windings is done by the PTC relay mounted on the side of the compressor. The Compresor part number is EMY32CLC. PTC relays can be found here:
You will have to match your relay to the image.
I would recommend using the phone locally to purchase the relay AFTER performing the following.
POWER OFF / Unplugged WAIT 30 minutes for the compressor to cool and the coolant pressures to stabilize. After 30 minutes plug in the unit and see if the compressor starts.
POWER OFF / Unplugged
IF after 30 minutes the compressor does not restart....
1. Read the pins of the compressor to the case of the compressor. No grounds allowed.
2. Read pin 1 to pin 2 (on 2 pin compressor) you should read resistance.
3. If you have a 3 pin compressor only 2 of the 3 pins will read to each other at any given time. One for start winding and one for run winding with 3rd pin being common.
A locked compressor rotor/armature will also cause the compressor not to start. A locked rotor requires compressor replacement. (Fingers crossed lets hope that the rotor is not locked!)
Hopefully your unit will restart. A momentary loss of power will cause a compressor to hot cycle and not restart. All it takes is about a 8 second power loss to put the compressor into this no start frenzy. Do the 30 min no power thing and see what happens. (maybe save your self lots of money.)
Thanks for choosing FixYa,