I have three cruiseairs conrolled by three SMX controllers. Beaver coach made a black box that allows the SMX for the CruiseAirs to talk to the Webasto. I have one set of Webasto toe kick heater that no longer works from the SMX and they don't function anymore either. I have jumped 12 volts to the toe kick blowers and they work. They are not getting a signal from the SMX or the black box. CruiseAir said the black box is not thiers and can't help.

I know that Marathon uses the SMX controllers with the Webasto. Anyone out there with an older coach and likewise SMX have any ideas as to my problems? I can't find any fuses or loose wires, and I have not done anything in that area to upset the balance.

GregM