Sorry, I don't have an answer to your question, but do have an observation that may be related. My coach is a 2014 Palazzo 33.2, and when my furnace activates, the front air conditioner also begins to blow. I do not believe it is blowing cold air. I suspect that it is drawing in air at the ceiling (negative air pressure) to facilitate better distribution of the heated air from the furnace via the floor ducts. That's just speculation on my part. Does the front A/C unit in your rig activate along with the furnace?
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