Ask Experts Questions for FREE Help!
 

Free Answers in 3 Easy Steps

Register Now
3 Steps
 


Ask QuestionsprogressAnswer QuestionsprogressBuild ReputationprogressBecome an Expert
 
At Ask Me Help Desk you can ask questions in any topic and have them answered for free by our experts. To ask questions or participate in answering them you must register for a free account. By registering you will be able to:
  • Get free answers from experts in any of our 300+ topics.
  • Accept money for answers that you provide.
  • Communicate privately with other members (PM).
  • See fewer ads.
  Answer this Question    Ask about Heating & Air Conditioning    Ask about another Subject  
 

djevica
Jul 25, 2009, 09:25 AM
I just bought a Honeywell model # RTH110B to replace an old thermostat. My problem is, I have 5 wires (white, yellow, green, blue, and red). The honey well does not have a label for blue. Where does the blue wire go?

wmproop
Jul 25, 2009, 09:54 AM
does it have a spot labeled ,C, if not the blue isn`t neccessary,, the blue/common is to take away the need for a battery

this is in normal cases providing the wireing was done by rule of thumb

djevica
Jul 25, 2009, 11:29 AM
The only "C" it has is next to the R. Rc and Rh. If the Blue goes with the Rc, then I don't need the wire linking Rh and Rc? Says I don't need it for a 5 wire hook up.

djevica
Jul 25, 2009, 11:29 AM
The only "C" it has is next to the R. Rc and Rh. If the Blue goes with the Rc, then I don't need the wire linking Rh and Rc? Says I don't need it for a 5 wire hook up.

wmproop
Jul 25, 2009, 12:09 PM
hook up your w-r-y-g,,,with jumper ,,,tape up and tuck away the blue not to be needed