C Wire -- How to use the G wire as a C wire
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Uploader Comments (Homehandyman101)
All Comments (11)
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learn some new. thanks
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If you need the fan to turn on with the heat (not the AC), I suppose you need to jumper the furnace terminals G & W instead of G & Y, is this correct? Please respond if there are any issues with this method. Thanks for posting this.
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Thanks for putting this video together. It is great. However, I have an issue. I have an oil furnace in my basement, and an air conditioning system in my attic. My G wire is connected to the air conditioning system in the attic. I looked in my air conditioning system, and I don't have a C terminal in there. I have the following terminals in the unit in my attic: R, W3, W2, W1, G, 3. And there are currently wires connected to R, G, and 3. Can you help?
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@thunderchief1994 no i didn't miss it. i was thinking i did something wrong until i read your comment then i understood why. :)
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@optical76 You missed my point. I am trying to advise you that the fan will ONLY work when the furnace or the air conditioning turns on. The fan switch has been disabled by you as you have taken the G-fan wire off and hijacked it for C wire. The fan switch is merely a non functioning button at this point.
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@thunderchief1994 thank you! i just tried this method and went to test it with the fan button on the side and it didn't work.
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I don't have a C connection at my furnace... i have a T... is that the same thing?
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Hey Thanks a Bunch! This really helped my thermostat requires the C connection to run but I don't have one!
Cheers HH
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@gixxtrixx Only G and Y should be jumpered, and only if it's not an electric furnace. In furnaces run by fossil fuels, you can jumper the G and the Y on furnace level, but do not jumper the G and the W.
Homehandyman101 1 month ago
Glad to here it was of help
Homehandyman101 8 months ago