my furnace was doing the same thing. Runs for a minute or so and comes on again few minutes later. Over and over. In my unit the problem was a heat register right below the thermostat. The thermostat would reach temp while the rest of the motorhome would be cold.I closed off that register adjusted the flow on some others. More even heat now. Does not cycle on and off so quickly now.
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2018 Chateau 24FS
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