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maillemaker's avatar
maillemaker
Explorer
Mar 11, 2017

Need help wiring Honeywell CT31A1003 thermostat

I have a 1990 Winnebago Warrior. I am rebuilding the bathroom wall, and had to remove the thermostat to do this. I was CERTAIN I took a picture of the wires before removal, but now cannot find the...
maillemaker's avatar
maillemaker
Explorer
Mar 12, 2017
I have the manuals for both the AC and the Furnace. Unfortunately they make no mention of thermostat hookups.

So, I took a guess. I assumed R was +, W was -, and I was pretty sure the blue wire went to the Y terminal.

Everything works.

Steve

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