More than likely your high gauge is reading a very small amount of pressure but due to it being a higher pressure gauge it looks like it is not reading. If you have pressure on the low side, you will have some amount of pressure on the high side. More than likely it is pretty close to being even pressure on low and high side which basically means you compressor is not building pressure. The fact that you pulled it down and it held a vacuum shows there is no leak but the compressor itself is not building pressure. Any time the compressor is cycling but no pressure is building, it typically means the compressor is not doing anything but spinning. There is a slim chance that you have a complete restriction but that normally always presents itself as a very high pressure on the high side.
I included the procedure to replace the compressor because based on this info, that is the direction it appears to be going.
Let me know if I am missing something or didn't understand what your issue is. Thanks
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Tuesday, May 14th, 2019 AT 11:32 AM