Purpose of Blue Furnace Wires On Replacement Single Zone Thermostat for Dometic RV Air Conditioners
Published 04/11/2024
Question:
Your wiring diagram of the dometic control box was great, but could you tell me the 2 blue wires labeled furnance are doi g what? Are they sending 12 volts to the furnace? No sure wgat tells the furnce ro turn on. I get the tstat sends message to the control box and i figure the control box then sends ? Thru the blue wires. I hope this nake sence. Thanks.
asked by: Jim B
0
Expert Reply:
The two blue wires for the # DMC79FR control box wiring are signal wires. They complete the circuit at the furnace control board when the furnace should be running.
expert reply by:
Robin H
0
Product Page this Question was Asked From
Replacement Single Zone Thermostat for Dometic RV Air Conditioners - Black
- Accessories and Parts
- RV Air Conditioners
- Thermostat
- Black
- Dometic
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Jim B.
4/11/2024
Thats what im confused about. They seem to carry 12 volts, 1 of the blue wires ties in at the on off/ braker switch which is low voltage and that breaker poped on me once and it killed all power to the t stat. Just confused how they tell the contol board to start.