The heat does not come from the ceiling for the furnace, the controls are above the door for the living room and galley areas. There are 2 fan switches that push the air in the ducts at floor level depending on the speed set. These 2 do not work but the bedroom one does. My MODE is in FURNACE because the bedroom one kicks on and works. I can't see the display to confirm that but have no way of knowing for sure what MODE I am in or what t he temperature is or if I'm only controlling ZONE 2 which is the bedroom. ZONE 1 could be set different and that is why it won't work up front.
Hurricane heater works. Fires up and puts heat in bedroom so I know that is not an issue. The issue lies with the thermostat and not being able to see what MODE each zone is in. Does not display on either old one or the new Micro air RV thermostat. Yes it is the correct replacement for the 5 button old one.
I'm leaning to bad phone cable connection somewhere went bad. I've pulled the inside cover down in bedroom AC unit to see the phone cables and have unplugged and replugged them in several times as well as at the thermostat itself but have not tried the individual wires within the cables. I'm not sure which cable goes to/from thermostat and the AC unit.
All fuses in AC units on roof are good. I did try the solder connections on the old thermostat with the phone cable plugged in like referenced above and got no voltage. So that tells me the thermostat itself is not getting power. I'm just not sure where to go from here.
I may have to get it to a shop where someone with electronics troubleshooting can look into it.
Thanks for all that are trying to help. Much appreciated.
Mark
