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Gmoney5712's avatar
Gmoney5712
Explorer
Dec 11, 2019

Dometic comfort zone furnace turns off after 30 seconds

I have a 2018 voltage and the comfort air dometic zone control thermostat. Last week it worked well and now it won’t stay on longer than 30 seconds. I have reset it by turning it off and pressing and ...
enblethen's avatar
enblethen
Nomad
Dec 11, 2019
I am guessing the furnace is not operating.
Open furnace access, locate the two blue wires, install a temperary jumper between them. The furnace fan should start, furnace should start producing heat. If it continues to operate, remove jumper, furnace should shut off burner go into cool down and then shut off.
If it does the furnace is operating correctly and problem is thermostat or it's system.

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