ok,, got it.. You would be trying to reverse the flow of power which could cause some serious damage to your inverter. It is made to have power flow out, not in..
Also you may have some systems that are connected to your 110 power, using the inverter may try to power those systems as well and put a huge drain on your inverter to the point of lowering the power and voltage which could do more damage to those systems.. Radio, CO2 detector, etc.. I know that as soon as I put shore power to my TT, the radio powers up, the microwave panel comes on, my CO2 detector comes on and those are just the systems i am aware of..
I'm not an electrician, but have several years as an electronic technician and have seen some nasty things happen with power supplies when the electricity is flowing the wrong way. I am also going to say that while I am not 100% sure that anything would happen I wouldn't take the chance..
2013 Jayco Jayflight Swift 264BH
2002 Yukon 5.3L Vortex w/tow package
When I die, I want to go peacefully like my grandfather did–in his sleep. Not yelling and screaming like the passengers in his car.