Hi guys today it was nice to see a camera that was not cooling, I did a cleaning because the condenser is very dirty and the equipment cut by thermal, after that it still did not cool and the pressure was very high, change filter and empty and load again , it has r12, 1 hp compressor with vet, it turns out that it still did not cool, after several intense loads I decided to change the vet, I bought the valve for that compressor and the change, but it remains the same, just at 40 psi in low to cool after the valve but it is already consumption and cuts, I begin to remove refrigerant but it does not cool anything being with 20 psi low and 150 high, is it that the compressor is already having problems? Thank you all

Cheers at what temperature do you want it, if it is a preservation the pressure to be around 30 psi and if it is freezing between 5 to 10 psi you have to close the vet and add freon the vet is 1/2 or 1 tons measurements of the camera and temperature at which you want it