2015 Interstate Furnace?

[JAdams]

Am I missing something? Propane is on & full. Van is also plugged into power. The Dometic thermostat has 3 modes- cool, auto & furnace. When switching on the Dometic the first & only unit to come on is the roof AC & fan. To get to furnace mode the upper ac unit fires up & stays running. It's 50 degrees outside & the thermostat is turned up. Am I missing something? Thank you!

[c21]

Originally Posted by JAdams

Am I missing something? Propane is on & full. Van is also plugged into power. The Dometic thermostat has 3 modes- cool, auto & furnace. When switching on the Dometic the first & only unit to come on is the roof AC & fan. To get to furnace mode the upper ac unit fires up & stays running. It's 50 degrees outside & the thermostat is turned up. Am I missing something? Thank you!

Switch the fan to "auto" mode and the AC fan won't come on when you turn the furnace on.