You stated "INVERTER". Are you talking about the converter that is built into your PUP? What do you have plugged into your 110v receptacles? Unplug everything then start with one appliance. Make sure it is turned off, plug it in then turn it on. If no problem turn it off and unplug it and do the same with another appliance until you are sure that each item is alright. Next, how much amperage are you using when you turn the appliances on as you would under normal circumstances?
Would love to know how this turned out!
From the Great Southwest
1996 Chevy S10 4.3 L V6
1985 Jayco J 1008 SG