Wiring I'm replacing an old analog thermostat with a Honeywell RTH230B. I'm not quite sure which wire goes in which slot. My current wiring consists of Green, Blue, White, and Red and Honeywell's slots are RH, RC, W, Y, and G.
Red goes to RC and RH, White goes to W, Green goes to G and Blue goes to Y. iam assuming on the old tstat that Red whent to R White went to W Green went to G and Blue went to Y
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the colors of old system are for heat pump.if you have a heat pump you need heat pump thurmostat and colrs will make more sense.if not,then you need to go into furnace to see what colors go where.yellow is cool, goes to compressor contactor,usually another wire going from furnace to outside unit.green is fan relay rh is heat call rc is cool call
Hi,
Yes to everything!!
You have it figured out!!
Just make SURE that the blue unused wire cannot touch any of the other wires, it will wreck your transformer in a split second.!
I hope that this will help you to solve your problem!
yes .common as in the netural side of the transformer x to cif not hooked up the stat will still work. and honeywell has good support for their products . Tom
This my situation exactly. Changing from a 6 wire manual round Honeywell thermostat to a 5 wire Honeywell programable. Is there a way to maintain all functions?
Sounds like you have it wired wrong.. Pop the top off and give me to color of the wires and tell me which letter each color wire is on.. that will tell us right away if you have it wired wrong
My a/c would not work, so I moved my blue wire to Y. Now it turns on!
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