Trying to run heat.....furnace is 12V and t-stat controls both A/C and furnace.
So depending on model the 12V DC may go thru A/C controller.
A/C unit is partially exposed to elements (fan motor/condenser cooling unit) but the controls/contacts etc should not have been exposed as they are under the metal sealed cover for evap cooler and capacitors.
Sounds like when the AC shroud was whacked and knocked off the sealed cover was damaged and allowed water into the sealed area.
Need to go up on roof and remove metal cover/access plates and check for damaged wiring/burnt wires/controller.
As for the A/C Unit and Microwave not working.........was the trailer plugged into an AC power source?
If not......they won't work as they are 110V AC appliances
