Opened up the filter grill on a Dometic 13.5 ducted air conditioner and happened to notice this little orange wire sticking out by itself. All the other wires have mates, blue to blue, brown to brown so on, although the mating wires are not always the same color.
There is no orange wire for it to mate to. There is no other wire of any color that does not have a mate. The little wires seem to be in a bundle or cable.
The A/C works fine.
The furnace has never worked right. For the furnace to come on an run one heat cycle a switch on the side of the furnace must be cycled on and off.
Maybe this is the problem? Where does the orange wire go?