Unit M#4149SCAM , S#W0000005354 , R-134A. Complained of high temp in the case. Check the condenser coil and it is clean. Compressor is running but really hot and shutting off on overload. Check the evap coil and found 3/4 of it is solid ice. I defrosted it and found the bulb for the pressure control,zip tied on the surface of the evap coil and txv not insulated. I place it back inside the middle of the coil and insulate the txv. I did the right thing...right? Now I am not sure. When I turn the unit on, the compressor only runs for about 30-45 seconds, hot and still appears to be going off on internal overload. I adjusted the pressure differential/cut-in but the compressor will only run the same. I then put my gauges and now I have equalize reading on both high and low side with the compressor running? Is this even posssible? Or I just hearing the compressor running but it is not really compressing? I did not finish the diagnostic because I have to leave due to the area is getting busy and I am in the way.
I wanted to check for leak but with pressure equalized I told the boss that the compressor is bad(but did not have enough time really to check it). And will do the leak check when we come back for the replacement.
Please be easy input......newbie