Re: Generator only powering one leg?
Reply #1 –
Start by flipping OFF and back ON the on-generator breakers.
If that doesn't do it, and you are safe working around 120 VAC, I would check for power in the ATS at both L1 and L2 hots to neutral IN from generator and OUT to breaker box. If no 120 VAC on one of the legs at the ATS, check for wire connections between generator and coach.
Brett