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I installed a new honeywell thermostat and the house will
I installed a new honeywell thermostat and the house will not heat to over 66 degrees. It is 39 degree outside. … read more
Phil
Phil
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Degree, Mech Engr Technology
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Yes we have a question now. My dad is trying to install a Honeywell
Yes we have a question now. My dad is trying to install a Honeywell thermostat for my sister. The model is CT87K non programmable thermostat. The furnac it is going to is an old Dayton brand sold by G… read more
BillyHvac
BillyHvac
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State Licensed Mechanical Contractor
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We just installed this Honeywell CT87N and can only get hot
We just installed this Honeywell CT87N and can only get hot air. We installed the wires the exact way we pulled out of old one and now nothing works...??… read more
airheatman
airheatman
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How do I replace a Marley model 602 to a honeywell programable
How do I replace a Marley model 602 to a honeywell programable therm. 4 wire to honeywell 2 wire?… read more
gotoman for ac
gotoman for ac
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I bought a honeywell seven day thermostat and trying to rewire
I bought a honeywell seven day thermostat and trying to rewire from old. have two wires running to thermostat existing had the green and white together running into green. so tried to copy existing bu… read more
gotoman for ac
gotoman for ac
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Associate Degree
5,490 satisfied customers
I am trying to install Honeywell digital thermostats into my
I am trying to install Honeywell digital thermostats into my house. I have 5 zones, radiant floor heating, a mcklellan boiler and only heat, no cooling, no fans. I did not previously have a digital th… read more
BillyHvac
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I have a GPH1348H21AB goodman heatpump like to no how I can
I have a GPH1348H21AB goodman heatpump like to no how I can wire it to my thermostat in my house the outside wires are white-brown-blue-red-orange-yellow-green and the thermostat is a white rogers and… read more
gotoman for ac
gotoman for ac
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I am trying to replace a White Rogers 1f80-361 with a Honeywell
I am trying to replace a White Rogers 1f80-361 with a Honeywell rth6350d. I have single stage heating (gas furnace, hot water heat) A/C system. The WR had the following wires: red to rc with a jumper … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
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Heat not coming on, replaced thermo with Honeywell RTH3100C
Heat not coming on, replaced thermo with Honeywell RTH3100C does heat and cool fan in auto. Old unit not wired properly, no tags. I can get ignition of gas furnace but still blowing AC, no heat. Wires… read more
airheatman
airheatman
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Im trying to install a RTH221B and the old wiring only has
I'm trying to install a RTH221B and the old wiring only has a red wire, a white wire and a black wire. I hooked the red wire tot the R connection, the white wire to the W connection and the black wire… read more
Bart Jay
Bart Jay
Vocational, Technical or Trade Scho
Installed Honeywell thermostat RTH221, weeks ago. After several
Installed Honeywell thermostat RTH221, weeks ago. After several days of troubleshooting, finally got AC to turn on. Now it is cool outside. Heat won't come on.… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
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My current thermostat is an old, mercury, non-programable Tempstar
My current thermostat is an old, mercury, non-programable Tempstar model TAXCOO4T and it has an emergency heat feature. I have a heat pump for A/C and heat. I want to replace it with a Honey well Prog… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
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I purchased a Honeywell RTH110B non-programmable electronic
I purchased a Honeywell RTH110B non-programmable electronic thermostat to replace the old Honeywell mercury unit for basic AC/heat/fan. The old unit has four wires: RED GREEN BLUE WHITE The wires were… read more
spivco
spivco
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Hi, any help you can give would be greatly appreciated! im
Hi, any help you can give would be greatly appreciated! i'm trying to install a non -programable honeywell thermostat. my problem is that I took off the old one without marking which wire went where. … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
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I would like to update my heil (model # haxcoo4tw01, 2 stage
I would like to update my heil (model # XXXXX 2 stage heat & 1 cool) thermostat to a honeywell digital RTH3100C thermostat, but the wiring colors don't match. What do you suggest?… read more
gotoman for ac
gotoman for ac
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I am trying to wire up my Honeywell RTH7500D where a White-Rodgers
I am trying to wire up my Honeywell RTH7500D where a White-Rodgers unit was formerly. The model on my previous unit is: 1F73 multi-stage/heatpump Non-programmable. In the installation booklet it is ad… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
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I have a Honeywell RTH230B thermostat. It has a wiring diagram
I have a Honeywell RTH230B thermostat. It has a wiring diagram of Rh-Rc-W-Y-G. I have wires: 2 red, 1 white, 1 yellow, and 1 green. The White, Yellow, and Green are good. The issue I have is that when… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,853 satisfied customers
I am replacing an old honeywell non-programable thermostat.
I am replacing an old honeywell non-programable thermostat. It had 5 wires coming out of wall.(green red yellow white blue). The new one is a Honeywell non-programable CT87N. .The thermostats look kin… read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,853 satisfied customers
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