[tinman7]

Does anyone out there know how to go about troubleshooting airconditioners? I have a 76 overlander, I know it has the orignal one in it. I bought this A/S last september,it had been parked for 17 years with no one using it and it was only used for 4500 mi. before that. I was hoping with such little use it would be something small that was causing the problem. When I turn it on the fan comes on but I don't hear the compressor and it does not get cold. I am 2 hrs away from it now but in a month I hope to start getting it ready for our first season. I can live without AC but... I hope it may just be corroded conections or something obvious, I just don't where to look,I removed the cover on top but didn't see any thing to mess with so I just closed it up. the thermostat seems to be ok, when I run it the fan kicks on and the heater will work.
Any thoughts?
Thanks Frank