A couple of weeks ago we turned on the roof air and left it for 30 mins. Came back inside and the roof air is off and will not restart. All Breakers and fuses are fine.We had a Tech go up on the roof and found no power was going to the unit while the RV is plugged into 110. We ran a power cord from another house plug and hooked it directly to the Air Conditioner and it powered up right away. Roof air does work when directly conntected to ac power but not from inside the RV. The wires that we can see all seem to be fine but wondered is there another junction box somewhere inside the RV that we cannot see? As mentioned earlier all fuses and breakers are fine. 2011 Winny Vista 26P Thank you