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2 zone heating system and the main thermostat failed.
I have a 2 zone heating system and the main thermostat failed. The wires from the zone control are a blue and green and a blue, green, white and red. How do I hook this up to the honeywell RTH7500? If… read more
Kenton Guidry
Kenton Guidry
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Vocational, Technical or Trade Scho
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Am replacing Robertshaw 9500 Thermostat with programable Honeywell
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BillyHvac
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I am trying to wire a Honeywell RTH7500 to run a Trane heat
I am trying to wire a Honeywell RTH7500 to run a Trane heat pump A/C. The wires that were hooked up to the Trane non programmable thermostat do not match up to the terminal labeling on the Honeywell. … read more
gotoman for ac
gotoman for ac
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I bought a Honeywell RTH7500 Themostat to put on my electric
I bought a Honeywell RTH7500 Themostat to put on my electric furnace with Trane heat pump and air. These are the letters on my old thermostat Y-T-R-W this is jumper-B-G-0-X2. all the letters on new th… read more
gotoman for ac
gotoman for ac
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I had a RTH5100B thermostat on a heatpump with electric back
I had a RTH5100B thermostat on a heatpump with electric back up. This thermostat would not work with the electric back up. I contacted honeywell and was informed that I need a RTH7500. The problem is … read more
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I have a 90 series blue 1F95-1277 I currently have a
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Tom
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I had a Rheem thermostat model Q674L 1504 and am replacing
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Richard
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I will like to replace a Trane SEN00413 BAYSENS010B SENSOR
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BillyHvac
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I purchased a Honeywell RTH7500 series programmable thermostat
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Hey, I am installing a Honeywell RTH7500 7 day programable
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I have a Honeywell PC8900 thermostat that no longer works and
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I am replacing a Totalline thermostat that has the following
I am replacing a Totalline thermostat that has the following wiring: White - R Green - G Yellow - Y1 White - BOW1 Blue - C The Honeywell RTH7500 does not have a terminal BOW1. How should I connect to … read more
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i have an old Weathertron 230a(10 yrs old) and just bought
i have an old Weathertron 230a(10 yrs old) and just bought a Honeywell RTH7500 to replace it. On the weathertron the wiring is G=gn, O=orange, x2= Black, Y=yellow,T=tan R=red,W=whiteU=x, F=x, B=Blue o… read more
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I just bought a programmable Honeywell thermostat (RTH7500
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I purchased a honeywell rth7500 thermostat and install it.
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Im replacing a trane thermostat with a honeywell rth7500.
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hello my name is XXXXX XXXXX im trying to install the honewell
hello my name is XXXXX XXXXX i'm trying to install the honewell rth7500 series prgrammable thermostat and running into a wiring problem. the installation guide says to contact a professional so i'm em… read more
Rick Mather
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I just purchased a Honeywell programable thermostat, when I
I just purchased a Honeywell programable thermostat, when I disconected the four wires from my old thermostat i failed to label them. I have a natural gas furnace and centeral air. The old themostat c… read more
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Meet the Experts:

Phil

Phil

Mechanical Engineer

7,634 satisfied customers

Retired HVAC/ Electrical & Boiler contractor. Industrial

Rick Mather

Rick Mather

HVAC Technician

3,133 satisfied customers

35 years experience, HVAC

Matthew

Matthew

HVAC Technician

2,014 satisfied customers

14 years experience in the HVAC field of service, installation, Manual J & D calculations

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

1,024 satisfied customers

I have been an HVAC/R mechanic/technician for 30+ years.

Kenton Guidry

Kenton Guidry

HVAC Technician

963 satisfied customers

12 years install/service experience.

Rick Ridley

Rick Ridley

UK Heating Engineer

871 satisfied customers

Retired But have had 30 years on the tools, Ex CORGI

Tom

Tom

HVAC Technician

770 satisfied customers

16+yrs HVAC/R service. Residential Commerical Industrial

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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