Coleman mach HVAC big picture and component locations
On my 2003 Discovery 38u, I recently had a power surge that wiped out the thermostat. . . Temporarily. . . That is, I eventually found a procedure online to reset the thermostat, and it came back to life. But since I've always hated that tiny screen on the thermostat, and its funky operation, I also became enlightened about the new WiFi/Bluetooth thermostat made by MicroAir, and ordered one of those. It plugged right into the same connector, and worked perfectly right out of the box. In fact, now the fan speed on the AC units works like it is supposed to, and it never had worked properly before. So now I can make sure Fido is OK while we are on a walkabout, see and control everything from the cell phone.
But now that I learned a tiny bit about this Colman mach setup, I need to know more. You see, my zones have been wired wrong from day one, with the front furnace being on zone one, but the rear AC on zone one. Zone two just the opposite. I'd like to fix this, and I bet it is just a matter of swapping two connectors at the control boards. Holy crap, I looked everywhere, and I don't see where those control boards are hiding! I did find two tiny ckt boards on the wall of the power compartment, behind and above the inverter, but they are only about 1" X 2", and not in a box or anything. What the hec are those for?
Of course I have reviewed all the wiring diagrams, both Fleetwood and Freightliner, but mostly I just shake my head when examining those worthless diagrams. (Who trained those guys on documentation, and is it too late to shoot them?) So, anyone who knows where to find a big picture diagram of the 2 zone Coleman mach system, please send me a link. And, if anyone knows where to find the control boards for this Discovery Colman Mach system, please post a hint, and you will be my best friend all day long.