Question about Honeywell Programmable Thermostat Heater

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REPLACING honeywell t874g1246 WITH A RTH3100C

I HAVE A 3 HEAT 1 COOL STAGE HEATPUMP/FURNACE

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 96 Answers

SOURCE: Thermostat auto-changeover mode unavailable

when you programed it did you go through all the setup #1-0 ,#3-0 ,#5-5 ,#12-1

Posted on Nov 25, 2008

  • 27 Answers

SOURCE: honeywell rth7400 keeps turning furnace on

check your heat antisipator setting make sur eit matches your tpye of heat. also, do you have a 2 stage heating sys?

Posted on Nov 26, 2008

  • 252 Answers

SOURCE: Where can I find a wiring diagram for a Honeywell

http://customer.honeywell.com/techlit/pdf/PackedLit/69-1889EF.pdf

Posted on Oct 18, 2009

heatman101
  • 43501 Answers

SOURCE: I install new RTH7500D thermostat Honeywell, when

Hi,
It sounds like the t-stat is programmed for a heat pump or you have a heat pump and the t-stat is programmed for a regular furnace....
Check out the manuals in the tip and go into the installer setup to change the t-stat to the proper programming for your system..

http://www.fixya.com/support/r3902153-honeywell_rth7500d_thermostat

heatman101

Posted on Apr 25, 2010

heatman101
  • 43501 Answers

SOURCE: Want to replace a White-Rodgers

Hi,

Here is a tip that explains the wiring and the color designations...

Thermostat Wiring and Terminal Designations


Thermostat Problems - How to Change the Thermostat for Heating or Cooling



heatman101

Posted on Dec 31, 2010

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1 Answer

I changed out american standard t-stat with 8 wires to rth3100c honeywell. the unit does not come on,not in cool or heat. No fan either


If you did not turn power off to furnace prior to changing thermostat, you may have blown the fuse on the circuit board or in-line of some of the wiring.

Apr 17, 2011 | Heating & Cooling

1 Answer

Amana PGD60C1152E no heat


Your thermostat Function 0170 must be set to "1" for Single Stage Heat/Cool. Function 0180 must be set for "0" for Heating Fan Control. Function 0240 must be set for "5" for the Heating Cycle Rate for your <90% Gas Furnace. If you have already done these steps or if, after doing these steps, you continue to experience a problem, you problem could be with your Gas Furnace. I'm including some links for information on your system and thermostat that include wiring diagrams.
http://johnstonesupply9.com/TechDocs/Amana/Package%20Units%20Gas-Electric/PGD%20Pkg%20Gas%20Ele/PGD%20Tech%20Info.pdf

http://customer.honeywell.com/techlit/pdf/PackedLit/69-2206EF.pdf

Mar 06, 2010 | Amana Haier AP125HD Air Conditioner

1 Answer

How to wire rth3100c to tempstar heatpump


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.

Feb 26, 2010 | Heating & Cooling

1 Answer

I Have a honeywell RTH2410 Thermostat I wired it without the blue wire which used to go to X on my old thermostat. Now it comes on with aux heat all the time and I have a Heat Pump. How can I fix this?


What was the old thermostat labels and the wire colors that went to them?
The typical heatpump wiring Terminals are:
R = Red = Hot side of Transformer
C-B-X = Common side of transformer Depending on brand of heatpump
Y = Yellow = Cooling Contactor
G = Green = Furnace Blower
O = Orange Reversing Valve Energize to Cool
B = Blue Reversing Energise to Heat Depending on brand of heatpump.
W2 = White = Auxiliary Heat
You need to be sure where each wire comes from when you connect them to the new thermostat.
The best way to do that is to go to the furnace and see where they are connected. R-Y-G are probably correct, you need to see where the Blue wire comes from and determine what the X terminal was on the old thermostat.

Dec 29, 2009 | Honeywell Electronic Programmable...

1 Answer

I have a honeywell thermostat model # th5220d1003-0636 & need to know what connections to make for gas forced air heat.


This is a Focus Pro 2 heat,2 cool thermostat. If you are connecting this to a single stage(1 heat) residential furnace then your connections are: At the thermostat the R and Rc therminals are internally connected so you can connect your R terminal wire from the furnace to the R terminal at the thermostat(this is your 24 volt supply for both heating and cooling. The W or W1 wire (heating) from your furnace you connect to the W1 terminal at the thermostat. The W2 wire from your furnace(if your furnace is a 2 stage furnace) you connect to the W2 terminal at the thermostat. The G wire from your furnace(indoor fan) you connect to the G terminal at the thermostat. The Y1 wire(cooling) from your furnace you connect to the Y1 terminal at the thermostat. The C wire(common or neutral) from the furnace you connect to the C terminal at the thermostat.

Nov 14, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

Wc wiring on thermostat


sounds like you have a heat pump the w2 on old thermostat is for a second stage heat. If you can give me a little more information on type of system you have (forced air furnace with heat/cool, Heat pump or boiler)? How many wires are on old thermostat? Is it a no programmable or programmable? How old is the furnace?

Jan 17, 2009 | Honeywell Programmable Thermostat Heater

3 Answers

Honeywell RTH3100C


You need to go into the installer setting to change it from heatpump to single stage gas heat.Go to www.honeywell.com if youve lost them.

Dec 13, 2008 | Honeywell Programmable Thermostat Heater

1 Answer

Honeywell rth7400 keeps turning furnace on


check your heat antisipator setting make sur eit matches your tpye of heat. also, do you have a 2 stage heating sys?

Nov 21, 2008 | Honeywell Programmable Thermostat Heater

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