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
So with system setting cool/ fan setting auto, the condenser runs but the indoor blower does Not? but when system setting cool /fan setting on, the condenser runs and the blower runs?
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SOURCE: My honeywell t-stat reaches current temp setting
Your differential is set to close you can go into tstat and change differential setting. Your install manual for your thermostat will tell you how you can set 1.2.3 degrees differential
SOURCE: honeywell RTH 7500d is not working.
Hi,
If nothing is happening then I am wondering about tje power... If you have access to a digital meter, you should have 24v a/c across the R wire and the C wire...
Did you make sure to turn off the power at the air handler or furnace before unhooking the wires at the t-stat??? If not then you have blow a fuse in the control board or burnt out the transformer...
If you have power on R then jumper to G and the fan shoudl come on... if it does then the t-stat is bad...
This should give you a few things to try and is what I would be doing if it were my service call...
heatman101
SOURCE: Honeywell RTH230B cooling problems...
I printed out the instructions for your thermostat. It looks like you should have the following.
There should be jumper wire between Rh & Rc
Red wire to Rh or Rc whichever is easier since there is a jumper. This is the hot wire and all the thermostat does is connect to route it to the components needed for heating or cooling.
Blue wire, tape it up and don't use it. There is no spot on this thermostat for it. It is only used on thermostats that are powered by the transformer.
White wire to W. Powers the heat relay
Yellow wire to Y. Powers the cooling contactor
Green wire to G. Powers the indoor fan relay
There is a black jumper on the back of the face plate. Look at section 2.4 Setting J2 Jumper in the installation instructions. Make sure you have it in the right position for what you have. If you don't have them just google them.
Hope this helps.
SOURCE: I am wiring a honeywell thermostat model number
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
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