Originally Posted by StephenD
Thanks folks, TimVWulp had the advice that worked. The problem is in the board. Of course that board and t-stat are "obsolete" and for $100+ I can get the "updated" t-stat / relay board package. My neighbor suggested I install a separate t-stat for the furnace. I can get t-stat for a lot less than the new parts. So now the question is: Is there any reason I shouldn't run my furnace and ac with separate t-stats?
Not if you make sure you turn one of them off. Some thing else to think about. Use an electric heater and keep the furnace set around 60 in case the electric heater can't keep up. If you are paying for electric in a park why not use it?
07 Dodge 1500 crew cab with 20" wheels, 08 Forest River Rockwood Signature Ultra-lite 8280SS
"The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore, all progress depends on the unreasonable man."
George Bernard Shaw