Question about Honeywell Programmable Thermostat Heater

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Changing themostat from a white-rodgers 1f58-77 to a honeywell rb

The wire coming out of the wall are a red,white,blue,orange and green. how does the honeywell wireup using these colors?

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  • BOB  BROWER
    BOB BROWER May 11, 2010

    theres a lot more to know thazn just the wires comeing out of the wall . what type of system do you have . gas , oil electric , heat pump ? do you have one or two stage heat , or ac ? does the blue wire hook up at the airhandler , does it go to the outside unit ? how about the orange wire ? is this a package unit ? split system ? heat only ? all these things you will need to know before you can wire a thermostat

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  • Honeywell Expert
  • 252 Answers

Check the other end of the wire to see how it's connected.

Posted on Mar 12, 2009

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How to set up??


First, you have to make sure that the thermostat is set to conventional and not heat pump. Then, the best way to know where the wires go, is to mark what terminals the came off of from the old stat. If that isn't possible, the next best thing to do is go to the unit and see where each wire goes. This is because the wire colors are not exactly set to any certain standard. It's at the discretion of the person installing the system in the first place to use whatever colors they like, to work any part of the system the choose.
The basics/commonly used colors are:
Red- R terminal- Power
Green- G terminal- Fan
White- W terminal- Heat
Yellow- Y terminal- Cooling
Blue- C terminal- Common
Heat Pump Thermostats use more wires, such as:
Orange or Black - O/B terminal- Reversing Valve
Brown- W2/Aux terminal- Heat

My suggestion would be that your black wire is for your cooling(Y), and all other colors wire up to the corresponding terminals. There are many systems that are ran only by 2 and 4 wire setups, therefore, it's possible that whoever ran your wire initially did not have a yellow wire in the strand. Also, if there is a yellow wire in the strand(possible 7wire strand), it could also be that the wire had a short and they switch the wires to bypass the short. Hope this helps and Happy Holidays!

Dec 01, 2013 | Honeywell Programmable Thermostat Heater

1 Answer

Where do I put the wires on my honeywell thermostat RTH7600. they are black green red and white


This is the official installation guide for your thermostat. Go here:
http://customer.honeywell.com/techlit/pdf/PackedLit/69-2206EF.pdf

Jul 06, 2012 | Honeywell Programmable Thermostat Heater

1 Answer

Wiring


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

Sep 20, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

One honeywell to another


you need to program the thermostat for the reversing valve "O" it will tell you how to do this in the manual. you will need to chang from "O" to "B" or "B" to "O" depending on how its set.

Jun 24, 2009 | Honeywell Programmable Thermostat Heater

2 Answers

Heat will not shut off


Take white off of Aux, and attach it to L

Feb 16, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

Blower stays on with new themostat


Check to see if there is a short between the green wire and the red wire. Green is the fan control wire for AC. Sounds like some wires may be touching. How did the old t-stat get fried?

Jan 02, 2009 | Honeywell Programmable Thermostat Heater

2 Answers

Heating and Cooling Thermostat - can't get the wires right


Depending on if you have gas or oil heat the connections would be slightly different, but if you were only using the red, white, and black before, this should work. Red to Rc with jumper to Rh (or vise versa..) White to white, and Black to your Y terminal. Your Rc and Rh terminals are your 24 v supply, Yellow is connected to your outdoor unit, and W is the common for the heat, and G is for you high speed fan. Hope this helps

Jul 06, 2008 | Honeywell Programmable Thermostat Heater

3 Answers

Honeywell RTH230B


Normally, you should have 5 color wires: W-White, Y-Yellow, G-Green, R-Red and C-Blue.

The Blue wire is a common from the transformer on older systems, which is probably hooked to RC terminal.

Try this: Remove the blue wire and jump the RC to RH with the red wire and you will be fine. Blue wire should not be needed with the new thermostat.

This should also be stated in the instruction manual.
Hope this helps.

Feb 03, 2008 | Honeywell Programmable Thermostat Heater

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