I am recommissioning my old 1982 Airstream RV and the rooftop A/C units are not working. When I bought it in 2020, one of the two worked but now neither goes on. It seems to me that I've read previous threads here about home A/C units where some simple component caused the compressor not to fire up, I'm hoping to benefit from knowledge here and not have to bring it somewhere...any advice on what to check or look at? I know next to nothing but I do have a multimeter and test light.
Major thanks in advance. It's supposed to hit 103 here today, first real heat wave of the summer. I want to take the RV to the beach!
