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Thin blue wire coming from spark on Honeywell iid is not connected. Where does this wire connect to?

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  • Cheryl Witteman Dec 18, 2016

    This is on a Raypak RP2100 Lo Nox swimming pool heater

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: rewire an old 2 wire thermostat to a honeywell 5-1-1 programmable

I connected the blue wire to the R and the white wire to the W on the old thermostat and shoved the new Honeywell 5-1-1 Day programmable thermostat up the first guys *** that i ran into at Canadian Tire

Thanks for your help

Posted on Dec 29, 2008

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t1m130
  • 86 Answers

SOURCE: RTH6400 Honeywell - where does the blue wire go.

it all depends how things are wired inside your furnace downstairs on a basic system blue is usually a common - C and yellow is for cool - Y just leave the jumper in from R & RC R is 24v power and RC is 24v power in Cool yuo will just have to squeeze the new wire in with it before you get to far i would open up the doors on you furnace and see where the connections are in there so you dont blow any fuses

Posted on Jun 28, 2009

heatman101
  • 43501 Answers

SOURCE: Wiring problem?

Hi,
Yes to everything!!
You have it figured out!!
Just make SURE that the blue unused wire cannot touch any of the other wires, it will wreck your transformer in a split second.!

I hope that this will help you to solve your problem!

Thanks for using Fixya!!

Heatman101

Posted on Nov 25, 2009

  • 587 Answers

SOURCE: I am trying to install a Honeywell RTH2510

HONEYWELL WEBSITE:
Go to honeywell.com
Under red welcome sign
Bottom red highlighted box literature/image search
Type in thermostat model number
Click on arrow to right
Then click on the PDF files owners manual / installation instructions
If you can’t find what you want, the bottom left and bottom of web
Page, they have homeowners assistance and Home products to get the help you need.

Posted on Jan 09, 2010

  • 587 Answers

SOURCE: Need wiring diagram for Honeywell RCT8100

The old thermostat has a second stage heat which is W2. The new one doesn't have second stage heat.
The wiring your describing on the old thermostat is telling me you have a heat pump with second stage heat and the new thermostat is for air conditioning only. You will need to get a thermostat for a heat pump.

Posted on Apr 02, 2010

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Need help wiring a thermostat with 5 wires don't know what rh and rc mean.and how they connect. thanks


Hi, on a thermostat like you have, the RC and Rh have a jumper wire that connect the two using the red -hot wire coming in. This means R-cooling and R-Heating. So, take the red and connect to either one, and make sure you use a jumper wire to connect rc and rh together along with the red wire coming in. Yellow will go to Y for cooling, W for heating, and G,green for the fan. If you have a blue wire left over, it is a spare, unless you have no yellow. If it doesn't have a yellow, use the blue wire for cooling. Some contractors will use blue instead of yellow. If not, the blue is a spare wire.
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I am wiring a honeywell thermostat model number ct87n if I select fan on the fan runs when out on auto /heat nothing but if I put on auto / cool and adjust the dial to a low setting the hea comes on....


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
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w2 = 2nd. stage heat.
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No heat after installing honeywell thermostat H8110U


hook up the blue wire in the furnace cabinet where the blower section and the other thermostat wires are connected to the furnace. the thermostat you have uses a common wire from the thermostat to the furnace and this needs to be hooked up in the furnace otherwise you will have the problem you are having.

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Rewire an old 2 wire thermostat to a honeywell 5-1-1 programmable


I connected the blue wire to the R and the white wire to the W on the old thermostat and shoved the new Honeywell 5-1-1 Day programmable thermostat up the first guys *** that i ran into at Canadian Tire

Thanks for your help

Dec 28, 2008 | Honeywell Electronic Programmable...

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Replacing thermostat for central heat and air/ not humidifier


rh and rc should have a jumper between them.connect red to either.y=yellow g=green w=white and do not use the blue.your new stat will run on batteries.

May 26, 2008 | Honeywell Power Humidifier: Furnace...

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