HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Connect one-on-one with {0} who will answer your question

Related HVAC Questions
I have a Honeywell rth9585 and it's blowing hot air when set
I have a Honeywell rth9585 and it's blowing hot air when set to cool … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,965 satisfied customers
I have a trane 4TTR6036B100A I would like to hook up a
I have a trane 4TTR6036B100A I would like to hook up a Honeywell thermostat but there is no common wire. There is an extra blue wire not hooked up. I was told by Honeywell I can use the green fan wire… read more
Daniel Plourde
Daniel Plourde
plumbing, hvac technichian
Vocational, Technical or Trade School
472 satisfied customers
I am trying to replace my thermostat. I think I have a heat
I am trying to replace my thermostat. I think I have a heat pump, but I am not 100% sure. The existing Trane thermostat has all the standard connections - R, C, Y, G. The W is a W/O-B connection inste… read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
1,024 satisfied customers
Need help diagnosing a problem with an AC unit. I live
Hi, need help diagnosing a problem with an AC unit. I live in Houston, Texas. Temps have been in the 90s. The unit is old and is for a detached garage apartment of about 600 Sq feet. On a hot day in t… read more
airheatman
airheatman
HVAC Technician
10,137 satisfied customers
Im trying to install a venstar 1700 thermostat and in the
I'm trying to install a venstar 1700 thermostat and in the instructions they mention installing using 6 wires, unfortunately my setup has 7 wires. It looks like on the old thermostat there was a separ… read more
Appliance Guru
Appliance Guru
18,975 satisfied customers
I have a Ultra zone control, and Im trying ti install a programm
I have a Ultra zone control, and I'm trying ti install a programmable thermostat. My problem is that the old mercury switch thermostat had a Y,W,R,G,B,Br wire hooked up to it. The Blue wire was connec… read more
jHVAC
jHVAC
102 satisfied customers
when connecting the wires to the new thermostat I ended up
when connecting the wire's to the new thermostat I ended up with a blue wire left over from the old thermostat which was connected on the old one. what do I do with it the cooling system is not workin… read more
Appliance Guru
Appliance Guru
18,975 satisfied customers
I have a Trane Taystat 500 thermostat that Im replacing with
I have a Trane Taystat 500 thermostat that I'm replacing with an Insteaon 2441th thermostat. How does the wiring match up? For the Insteon I got: 24V Com - 24VAC Common 24RH - 24VAC Return W1 - Heat S… read more
Comfort Specialist
Comfort Specialist
Mechanical Designer & Estimator
Vocational, Technical or Trade School
1,368 satisfied customers
Swap Honeywell Chronotherm iii with 2gig ct-100 Z wave
Can I swap out my Honeywell Chronotherm iii master unit with a 2gig ct-100 z wave thermostat? My Honeywell has six wires: r5, w4, g, y, o, and b. If I can, do I wire it the exact same way that it was … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
Hello! Have a Honeywell rth2410b that I installed this winter.
Hello! Have a Honeywell rth2410b that I installed this winter. Gas furnace/blower worked fine all cold winter (Iowa) Tried to turn on AC today, and blower works, but not the compressor outside. AC was… read more
My20yrs.exp.canhlpU
My20yrs.exp.canhlpU
Contractor
44 satisfied customers
I have an eletric heater / AC Unit combo. Im trying to replace
I have an eletric heater / AC Unit combo. I'm trying to replace an old mercury thermostate with a new programable model. I have purchased honeywell model RTH6350. The wire designations do not exactly … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
I have a Honeywell Thermostat TH6220. We also have a heat pump.
I have a Honeywell Thermostat TH6220. We also have a heat pump. I'm just not sure which color wires connect to C (24VAC common), O/B (changeover valve), Aux. (Auxiliary heat relay), E (Emergency heat … read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
Hello, I have a York Heat Pump Heat pump with emergency
Hello, I have a York Heat Pump Heat pump with emergency heat, I tried to replace the standard thermostat with a Honeywell Prestige THX9321R5000. The existing old terminal wires for the old thermostat … read more
Mark Henley
Mark Henley
HVAC Controls DDC
3,216 satisfied customers
Changed thermostat from an old manual mercury switch to a state
Changed thermostat from an old manual mercury switch to a state of the art Honeywell Pro 8000. The HVAC unit is a Rheem 13 seer split system heat pump. Tried to connect wiring the same way as old ther… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
I just replaced a 20 year old Honeywell thermostat with a Hunter
I just replaced a 20 year old Honeywell thermostat with a Hunter 44860. I have a heat pump with an emergency heat option. I connected all the wires as per instructions and unit does not turn on at all… read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
768 satisfied customers
I have a carrier heat pump. I am trying to install a new RTH
I have a carrier heat pump. I am trying to install a new RTH 7500 Honeywell programmable thermostat I have separate w1 w2 wires and a separate C wire I also have brown wire that was not connected to t… read more
Mark Henley
Mark Henley
HVAC Controls DDC
3,216 satisfied customers
Im trying to wire a Rheem heat pump to a Honeywell Thermostat. The
I'm trying to wire a Rheem heat pump to a Honeywell Thermostat. The Rheem thermostat that I removed was wired like this Red=R Yellow=Y Blue=B Green=G White=W1 Orange=E Brown=X I'm not sure how to wire… read more
Kenton Guidry
Kenton Guidry
HVAC Technician
Vocational, Technical or Trade Scho
963 satisfied customers
I am replacing what appears to be a t1000C honeywell thermostat
I am replacing what appears to be a t1000C honeywell thermostat but there is no information at Honeywell on the thermostat. The old wiring has terminals labeled G C R Y W B O. The new RTH230b doesn't … read more
Rick Mather
Rick Mather
HVAC Technician
Vocational, Technical or Trade Scho
3,133 satisfied customers
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.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Phil

Phil

Mechanical Engineer

7,791 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

< Previous | Next >

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.

Show MoreShow Less

Ask Your Question

x