We have just purchased a new rig with 2 air conditioners. Camping next weekend with weather forecast to be hot! If everything else is on propane can we run one air conditioner?
Maybe, it'll be close. Keep your wires short and your connections clean, and check for plugs getting hot!! That a/c will be on 24 hours.
And, very important, check the voltage before, and when it's running. If you don't have a voltmeter, buy one. Anything lower than around 108 will be not good for the a/c.