I am assuming that the breaker to the A/C unit tripped. If you have a 50 amp service (I am guessing that you do since you posted you have two A/C units) and are using an adaptor to run the trailer from a 30 amp plug then it is likely that the plug or breaker isn't getting enough power. This results in all kinds of strange behavior and can damage the A/C units. I suggest you obtain a digital volt meter and check with the voltage at the power pole is. Campgrounds are bad about low voltage during high use peroids (hot days). We have had to run the generator at times due to low voltage.