HVAC

Have HVAC questions? Ask an HVAC Expert for answers

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

Related HVAC Questions
Looking for a replacement thermostat for my Aquatherm
looking for a replacement thermostat for my Aquatherm 24va03. An expert on here suggested that the Honeywell T6 would suffice but I cannot find one in my local hardware store. I've only been able to f… read more
RicksHVAC
RicksHVAC
Technician
Bachelors
14 satisfied customers
I recently purchased a home with a Carrier comfort zone ii
Hello, I recently purchased a home with a Carrier comfort zone ii system. It has a board with space for 4 zones but the home only has 3 zones wired/in-use. The thermostat says "comfort zone ii" but on… read more
TimothyH1119
TimothyH1119
Owner/Service Tech
High school Diploma
51 satisfied customers
I have installed a Honeywell Wi-Fi 7-Day Programmable Smart
I have installed a Honeywell Wi-Fi 7-Day Programmable White Smart Thermostat with Wi-Fi Compatibility Item #171234Model #RTH6580WF1001/U1, and I have no yellow wire at the wall. My central air worked … read more
BillyHvac
BillyHvac
Journeyman Service Technician/Inspector
State Licensed Mechanical Contractor
16,303 satisfied customers
Installing Honeywell wi-fi thermostat. Existing, old
Installing Honeywell wi-fi thermostat. Existing, old thermostat has 4 wires, a blue wire is connected to the yellow terminal. I've added a 24v adapter to the new thermostat in place of the C wire that… read more
Tamar D
Tamar D
Mechanic II
Vocational, Technical or Trade School
4,590 satisfied customers
We chatted the other night about my -Rodgers thermostat
We chatted the other night about my White-Rodgers thermostat where the batteries are draining. So I need a new unit. Looking online they talk about 2 wire vs 3 wire. My thermostat has 4 wires? Plus a … read more
Rick
Rick
Supervisor
34,834 satisfied customers
I currently have a RTH2419B1001 and want to convert to a
I currently have a RTH2419B1001 and want to convert to a smart therostat. … read more
Rick
Rick
Supervisor
34,834 satisfied customers
Phiil, I have a comfort zone ii carrier thermostat and it
Hi Phiil, I have a comfort zone ii carrier thermostat and it operates a 4 zone carrier system. Was wanting WiFi without upgrading everything. Is it possible to just change out thermostat and keep zone… read more
Phil
Phil
Consultant to Engrs, Govt & Contractors
Degree, Mech Engr Technology
12,257 satisfied customers
I have a buderus Logamatic R 2107 system and want to install
I have a buderus Logamatic R 2107 system and want to install a nest wifi thermostat. Do I have to disable the buderus outside temp monitoring?… read more
Rick
Rick
Supervisor
34,834 satisfied customers
I have a Honeywell TH9421C1004 (3 wire) programmable
I have a Honeywell TH9421C1004 (3 wire) programmable thermostat that I need to replace. It is hook up to a Honeywell Equipment Interface Module THM5421C. I would like to buy a Honeywell RTH9580WF WiFi… read more
Rick
Rick
Supervisor
34,834 satisfied customers
Need help with furnace/ac controls or lock-down options.
Need help with furnace/ac controls or lock-down options. What the best way to prevent a parent from monkeying around with their thermostat? Are there particular plastic cases that I can install with a… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
14,441 satisfied customers
Do you know if it is possible to replace the Honeywell th9421c1004
Do you know if it is possible to replace the Honeywell th9421c1004 thermostat with a wifi unit such as the RTH8500?… read more
Rick
Rick
Supervisor
34,834 satisfied customers
I have just two wires in a 50 YO honeywell thermostat running
I have just two wires in a 50 YO honeywell thermostat running just heat. I can't pull an extra wire without tearing out a lot of plaster. Can I connect just the two wires and use batteries to power th… read more
Rick
Rick
Supervisor
34,834 satisfied customers
I have a 6 year old 85% Bryant furnace and humidifier. Tonight
I have a 6 year old 85% Bryant furnace and humidifier. Tonight it began making a loud vacuum/sucking sound we have never heard before. Opening up the humidifier I've found there is a strong wind curra… read more
Phil
Phil
Consultant to Engrs, Govt & Contractors
Degree, Mech Engr Technology
12,257 satisfied customers
i am trying to wire a honeywell smart thermostat. my old thermostat
i am trying to wire a honeywell smart thermostat. my old thermostat has 4 wires (no c wire) it also has 2 wires running to a humidifier controller. how should i proceed… read more
Tim H.
Tim H.
HVAC Professional
Vocational, Technical or Trade Scho
3,972 satisfied customers
I have a Wi-Fi thermostat Model TH8320WF that was installed
I have a Wi-Fi thermostat Model TH8320WF that was installed last Dec and was working fine. I had to change my U-VERSE router which changed my WI-FI address. Now my thermostat cannot connect to my WI-F… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,129 satisfied customers
hi Douglas I am looking to replace my programable thermostate (Honeywell CT8602 with a ne
hi Douglas I am looking to replace my programable thermostate (Honeywell CT8602 with a newer wifi type. The one I am replacing is a master zone compatible as I have a slave thermostat in another room … read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,129 satisfied customers
I just moved into a home that has a 2010 trane veritable speed
I just moved into a home that has a 2010 trane veritable speed comfort link II heat pump XL20i unit I want to get a smart thermostat that I can control wi-fi, which one will work? also I have done a l… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,129 satisfied customers
Hi - I have a Honeywell wi fi thermostat. The house has baseboard
Hi - I have a Honeywell wi fi thermostat. The house has baseboard heat and 3 zones and 3 circulatory pumps. Furnace is oil. Each of the 3 thermostats on the 3 zones only has 2 wires. I want to install… read more
Rick Mather
Rick Mather
HVAC Tech
Vocational, Technical or Trade Scho
3,631 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:

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

1,029 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.

Jerry

Jerry

Service Technician

576 satisfied customers

HVAC Technician. Hearth Products Specialty

A-1 Tech

A-1 Tech

Service Manager

526 satisfied customers

I have been in the HVAC business for over 40 years.

Thehvacguy

Thehvacguy

LIC HVAC,Plumber

426 satisfied customers

Certified HVAC Universal Technician,Lic plumbing contractor, 28 yrs exp

Drcool

Drcool

HVAC Technician

264 satisfied customers

i have been an A/C tech for the past 30 Years. working on window types, split type, and package

N4IEA

N4IEA

NATE Certified; HVAC Technician

227 satisfied customers

Retired, HVAC / Electrical Technician / Contractor 35-years Experience.

< 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