We have a 2015 Dutchman Voltage 3950 with 3 ac units. The center unit quit working, took it to shop and they said it was out of Freon. They ordered an exact replacement and when they went to change the unit on the camper has had the wiring harness plug cut off and it was wired to a circuit board. The shop called dometic and they said it would void warranty and not be able to be returned if it doesn’t work(which I was told it happens). I am pretty sure the unit is not stock, it is a brisk air II with heat pump…..does anybody know what came stock on a 3950 voltage?