Ok Four suspects
IF NOTHING works, (Try the roof air on fan only) then one of them goes poof, so I'll put it last
Circuit breaker on generator: On mine the breaker had TWO positions. on and tripped/off not On Tripped Off like most house (Square D) Breakers.
if it was On or OFF the word showed on one side or the other of the lever but was very hard to see without a small flashlight.
Auto-Transfer Switch? Do you even have one (if you you have an outlet that matches the shore plug. try plugging into it for generator use. OH turn off MAIN breaker before you plug in and start generator once Genny is ready (about 30 to 60 seconds) turn breaker back on, when switching to/from generator from shore keep breaker of for THREE minutes minimum)
That's both of the first suspects. If you can't afford a auto-transfer switch the "Poor Man's" Transfer (The outlet attached to the generator) is less expensive.
The last and most unlikely suspect is the generator output
The inverter/charger will look at the power from the genny.
Some contractor Generators will "Scare" the inverter (heck they scare me) and it will refuse to pass the mess they call 120vac
Or it might be less. or more. than 120 enough the inverter says "NO THANK YOU"
Or the frequency could be low or high. Some of the inverter/chargers are fairly sophisticated when it comes to that thing.
But the air conditioner.. (Why I said try it in fan mode) Will NOT be connected to the inverter.. It will be connected to the main RV panel so any issues with the inverter will not affect it.
