I am truly stumped.
Greetings fellow Thorians. I am the proud owner of a BEAUTIFUL 1997 Residency 3480 that is in virtually new condition. 20,000 miles with impeccable maintenance records maintained by one owner prior to me. I am an experience MH person and an electrician, as well aqs a plumber so I normally know my way around the mechanical aspects of a MH. but this one has me baffled. My unit has a 30,000Btu ducted furnace, according to the documentation that came with the coach. It has the original Duo-therm thermostat and that also controls the 2 A/C units on the roof. (2 Zones). The problem is, I have no control for the furnace, I toggle through the mode button on the thermostat and my only options are of, fan only, or cool. on either zone setting. The thermostat apparently does not recognize there is a heating system. Are there some hidden fuses that, if blown, will not allow the thermostat to recogn ize the presence of a furnace? Any help would be appreciated
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