Installing new thermostat

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the new thermostat
I really don't want to fuck this up, I know nothing about electrical or HVAC and to be completely honest I cannot afford to pay someone to do this right now

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I understand how to mount it and all the obvious things, But I just don't know about the wiring
I'm guessing sense the fan still works on my current thermostat that the unused green wire might be a ground?

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Ok I'm pretty cold so I'm going to wing it

I'm an HVAC tech and I'm gonna help you out here bud. First make sure the high voltage is turned off to the furnace/airhandler. The rc/rh should be jumpered so, just connect the red wire to either terminal. The green wire which controls the fan goes to G terminal. The white wire which controls the heat, goes to the W terminal. The yellow wire that controls the a/c goes to the Y terminal. Finally the blue wire which is the common wire goes to the C terminal. Pretty simple process.

That unused wire is blue which is common so hook it up if you don't want to keep changing batteries all the time.

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>>1073404
Thanks man
I labeled all the wires with the stickers that it came with, Hopefully this works because all my wires and completely different colors


I guess I'll just leave the unused green one that was unused in the old thermostat unhooked and see what happens. I'll wrap it up in electrical tape

>>1073405
Maybe the green unused wire was supposed to be blue?


I changed the batteries in the old one like twice a year

>>1073409
I hope you turned off power first because you probably blew the 3 or 5 amp fuse inside the furnace if you didn't....

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Fuck yea it works!! I won't have to freeze my nuts off again tonight. A/C and fan work too

Thanks guys, That was pretty simple actually
>>1073412
Yeah I turned off half of the downstairs because no one seemed to label which breaker it was. The label was on an unused slot
The old thermostat and the new one.


At least I won't have to change the batteries in this one twice a year


.