Question about Honeywell Programmable Thermostat Heater

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What will replace a 2-wire 1F30W-301 thermostat which is not working? Are there any programmables? The 2 wires from the wall are Blue & White.

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Posted on Jan 02, 2017

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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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1 Answer

I have 2 wires coming from the wall, 1 white and 1 blue and want to wire a new honeywell 5-1-1 day programmable thermostat.


likely one wire to TH, the other to W if the thermostat operates on batteries. If the thermostat requires a 24 volt power source it is not compatible with your system.

Oct 09, 2017 | Honeywell Heating & Cooling

1 Answer

Replacing a White-Rodgers 1F56-301 with a Honeywell RTH22181039. The WR is so old the wires are not labeled and not sure how to connect.


That is something that someone needs to lay eyes on. You never know how one will color code the wires @ the furnace...let alone through the wall. Someone will have to ohm out the wires.

Nov 24, 2013 | Honeywell Programmable Thermostat Heater

1 Answer

Carrier OEM to Honeywell Programmable Tstat - NEED HELP


you likely have a "two stage" system, but not a two stage heat pump. the first stage is probably the heat pump itself, and the second stage is the auxilliary resistance heat that suppliments the heat pump at lower temps. if i knew the terminals that are available on the new stat, i could advise you on the proper wiring.

Jan 27, 2013 | Carrier Heating & Cooling

1 Answer

I have a red and a blue wire coming out of the wall. I am not sure what I need to hook them up to in terms of O/B Y R G W. Help!


Hi, if this is just a forced air gas fired heat only heater, put the red wire on the R terminal and if no white wire, use the blue and connect it to w for heat. Normally for heat only, with 2 wires, they will be R for hot and White for heat. First, take the 2 wires and hold them together to see if the heater will start. If it is wired correctly at the unit it will fire up if all is working. Don't be afraid of shock, as this is very low voltage. Hold together and give it a couple of min. to see if it fires. If so connect as I have said. If not, replace the stat with a heat only stat that has only 2 terminals. If its a wall heater, you will need a heat only milivolt stat to replace the 24 volt stat you have. You can use it and it will work, but you may have problems in the future. Please rate me on this, and if you need more help just comment by my user name below. Keep me posted.
Sincerely,
Shastalaker7
A/C, & Heating Contractor

Oct 21, 2010 | Honeywell Programmable Thermostat Heater

1 Answer

I have a Rheem Gas Furnace with an old analog thermostat (Wires conneected to terminals R and 4 for the thermostat). I went to install a Rheem digital and programmable thermostat and it indicated that it...


if you have 2 wire at thermostat Terminals at furnace that the thermostat wire attach to should be R & W if your new thermostat has R & W terminals is should work, an easy thing to remember is the red wire on R the white wire on W. If 4 wire at thermostat at furnace green on G, Blue on Y, red on R,and white on W same at thermostat If these do not match find a thermostat with these terminals

Dec 06, 2009 | Heating & Cooling

1 Answer

I just bought a repo house and there is no identification on the wires coming out of the wall for the thermostat. I have a red, green, white, and blue wire coming out of the wall. I need to know where to...


The best way is to see where the wires are connected at the furnace and duplicate them at the thermostat but typically the connections are:
Red wire to "RC and RH"
White wire to "W" (for heating)
Blue wire to "Y" (if you have central air)
Green wire to "G" (this is for the furnace blower)

Aug 27, 2009 | Hunter Fan Company 5/1/1 Programmable...

1 Answer

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...

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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