Booked the car in to my local air-con specialist today not knowing what the outcome would be as the car had been sitting unused in a garage for almost 10 years. The machine was hooked up and first protocol is removal of any gas already in the system. There was nothing extracted which meant all gas in the system had escaped which isn't a good sign, the machine then does a vacuum test which I expected it to fail and was surprised that it passed, a couple of minutes later fresh oil and gas recharged the engine was started with trepidation not knowing if the compressor would kick on. I was relieved when the mechanic told me it was all good and everything was working. Another job ticked off the list.
