Kathy Posted September 11, 2019 Share Posted September 11, 2019 When I set thermostat to furnace, the furnace come on, but the heat strip comes on with it. What should I do? Thanks. Sharon Link to comment Share on other sites More sharing options...
Overland Posted September 11, 2019 Share Posted September 11, 2019 You probably have the fan set to high or low instead of auto. The fan speed controls the fan in the AC unit, so you have to keep it set on auto with the furnace so that the AC fan doesn't come on. It's just a goofy quirk of Dometic thermostats. 1 Link to comment Share on other sites More sharing options...
Kathy Posted September 11, 2019 Author Share Posted September 11, 2019 Thank you! Kathy Link to comment Share on other sites More sharing options...
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