Honeywell 5/2 day stat, cooling auto setting not working, green wire g terminal, blue wire to y terminal, white wire to w terminal, red wire to r terminal with jumper to rc in place. the unit runs cool in fan on mode. i set the pre- set dates to 74 degrees after trying different settings that also did not work, very frustrating, please help
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The terminals on the old stat should be basically the same as on the new stat...with a couple exceptions anyway. Note the color of wire on each terminal before removing them and reconnect to the new stat on the same terminals. 8 wires typically indicate a heat pump, so in the configuration menu you'll have to tell it whether to energize the O terminal in cool or not. If you have individual wires on Rc and Rh terminals, you must remove the factory jumper between those two terminals on the new stat. If not, you'll burn out one of the two control transformers or possibly damage your new stat.
In the configuration menu, you'll have to tell it whether its a gas furnace or electric furnace, select the way the fan operates and possibly limit the cycles per hour on both heat and cool modes. There's a lot of subtle entries that need to be done to 'tailor' the new stat to your likings also.
I think it would be best to rely on someone thats a bit familiar with HVAC to change out your stat for you..... as once it is changed, all possible functions of the stat need to be verified as correct in operation.
there is it all depends on how many strands of wire are in there, they start at 2 wire and go to i think 8 wire and maybe more.
The wires are as follows:
1. red = power to stat.
2. green = fan control
3. blue or yellow = ac
4. white = heat
w1 = 1st. stage heat
w2 = 2nd. stage heat.
i am on line if you have any questions. wally
The Rc and Rh should have a jumper wire between them let it in. and hook the red wire to one of them it does not matter which one as they are jumpered. The white wire goes on the "w" terminal and the Blue wire will go on the "G" green terminal to run your fan.
This should get you up and running again!
If you have a 5 wire thermostat then you have a two transformer system a cooling transformer and a heating transformer.
The cooling transformer wires to Rc - Y - G,
and the heating transformer wires to R - W the R terminal heating would be the #4 terminal from the old stat.
Hopefully there are markings on the old t-stat as to what terminal is what.
on the honeywell 8000 use the heat pump labeling and then the standard wiring would be
There should not be a bare wire, it probably just has the insulation stripped back way too far.
You should probably open the furnace and compare the terminal label in the furnace to the wire color. normally yellow and blue pass through the furnace and are wire nutted to wires going to the outdoor unit. In the furnace the white wire will connect to the w or w1 terminal. also, you will need to set the Honeywell stat to have the following parameters.
other parameters that I did not specify, you may read the manual and make your own decision but I recommend factory settings for the other parameters