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The compressor does not turn on due to low pressure. I disconnected the pressure switch connector and check the pressure switch contacts were open. I then jumpered the connector terminals and verified the compressor running. I inspected all tubing and components as best I could. The only oil residue I saw was from the high side port on the tubing. As I stated the shop I took it to told me the system was empty. I wanted to verify this by momentarily depressing the low and hi side valve core stems and found some pressure still present. I would assume if I had a significant leak there would be no pressure in the system. To the best of my knowledge the system has never been serviced. I am the original owner. I do plan on getting manifold gauges prior to proceeding with a recharge. Thanks for your response.
Well I wanted to verify no system pressure prior to working on my AC system, so I momentarily depressed the valve cores on both the hi and low side refrigerant lines. To my surprise the system still contained pressure. The shop that I had check it out said the system was empty. I am assuming that the pressure is lower than the pressures capable of being read on the manifold gauges they were using when they did the check. So my question is if there is in fact a significant ac system leak wouldn’t all of the refrigerant pressure have dissipated by now. I am considering recharging the system possibly with refrigerant dye prior to replacing the condenser. Keep in mind the shop I took this to did not use dye to determine that the condenser was leaking, they were only assuming this based on external condition of the condenser. Any advice on how I should proceed will be greatly appreciated.