HVAC

Have HVAC questions? Ask an HVAC Expert for answers

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

Related HVAC Questions
Trying to install a nest thermostat to an amana furnace that
Trying to install a nest thermostat to an amana furnace that uses the "1" and "2" labled wires from the control board … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,968 satisfied customers
Rewire ABCD to standard terminals (R, G, Y, W, C) at the
Rewire ABCD to standard terminals (R, G, Y, W, C) at the furnace control board … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,968 satisfied customers
How do I covert my HVAC to non-communicating/standard. Want
How do I covert my HVAC to non-communicating/standard. Want to install the ecobee4. There are standard terminals, but the system is using the communication connector instead. Bryant MODEL 986ta… read more
airheatman
airheatman
HVAC Technician
6 years college
10,154 satisfied customers
We have an Amana 2 stage furnace and we are attempting to
We have an Amana 2 stage furnace and we are attempting to install an ecobee 4 thermostat we have gone over and over the wires and connections and all seem to be correct. There is a red light that come… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,968 satisfied customers
I just installed an ecobee4, i have a gas furnace and an
i just installed an ecobee4, i have a gas furnace and an electric AC unit, when the furnace turns on, the ac unit also turns on, have you heard of this before? … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,968 satisfied customers
I am having problems replacing two old battery operated
I am having problems replacing two old battery operated thermostats with two Ecobee3 smart thermostats. A 'PAK' used to send 28V to the thermostats is necessary. I have a Carrier Weather Maker two zon… read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
1,024 satisfied customers
I'm trying to find the control board my HVAC system. No, Yes
I'm trying to find the control board my HVAC system. … read more
D.E. Anderson
D.E. Anderson
Industrial Refrigeration Service Manager
200 satisfied customers
I have an Ecobee3. I had the man who hooked up my furnace to
I have an Ecobee3. I had the man who hooked up my furnace to come install it. He hooked up to where the fan would kick on as soon as the heat would come on because I had no C wire and made G the commo… read more
airheatman
airheatman
HVAC Technician
6 years college
10,154 satisfied customers
Installing a honeywell 9450 Wi-Fi Thermostat. Current
installing a honeywell 9450 Wi-Fi Thermostat. Current wiring: Thermostat: G - Green wire Y - Blue W - White RD - Red Heating Unit Circuit Board: W2 - No Wire Y1 - Blue BHUN - No wire G - green wire CO… read more
airheatman
airheatman
HVAC Technician
6 years college
10,154 satisfied customers
White Rodgers 1F80-51 got disconnected from the furnace. The
White Rodgers 1F80-51 got disconnected from the furnace. The t-stat has 4 wires (RC/Y/G and one more not wired), the furnace exposes two. I need to know how to wire it back.… read more
Rick
Rick
Supervisor
25,583 satisfied customers
I have an old Luxaire furnace with AC. I bought a new Thermostat
I have an old Luxaire furnace with AC. I bought a new Thermostat that needs C wire. Using the G as the common wire. Wired correctly according to Honeywell. When I connect the cold call to Y the compre… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,968 satisfied customers
Hello. I am install a Honeywell 9850 thermostat. The install
Hello. I am install a Honeywell 9850 thermostat. The install is complete and I had to use the "G" wire from the wire bundle and place it in the new thermostat "C" wire connection. My wire bundle has n… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,968 satisfied customers
I have a Lennox G1203E-82-9 furnace w/central air. Considering
I have a Lennox G1203E-82-9 furnace w/central air. Considering purchase of Honeywell WiFi Thermostat that requires "C" connection. Have extra wires, but terminal block on furnace has only R,W,Y,G,T co… read more
airheatman
airheatman
HVAC Technician
6 years college
10,154 satisfied customers
Hello, I have a Bryant 355MAV furnace. My new thermostat requires
Hello, I have a Bryant 355MAV furnace. My new thermostat requires a 24V common. I have two extra wires in the wall with my t-stat. Can I connect one of these open wires to the 24V C on the PCB in the … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,968 satisfied customers
I have a lennox g20 furnace and I am trying to install a new
I have a lennox g20 furnace and I am trying to install a new Honeywell wifi thermostat that requires a "c" wire... The Lennox doesn't have a c terminal. I have 5 wires coming out of the wall at the th… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,968 satisfied customers
I have four wires coming off the thermostat. They are red,
I have four wires coming off the thermostat. They are red, white, green, and blue. I also have two wires coming from the AC. They are red, and white. I have five spots on the furnace control board whe… read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
I have a heil furnace model# XXXXX , I had changed the
I have a heil furnace model# XXXXX , I had changed the wiring from the thermostat to the circut board but didn't pay attention how the wiring was put in place[not sure if it was right at all] there wa… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
I HAVE A GOODMAN GMT115-5 FURNACE AND A NEW 700A APRILAIRE
I HAVE A GOODMAN GMT115-5 FURNACE AND A NEW 700A APRILAIRE HUMIDIFIER AND NEED HELD WITH THE WIRING.ON MY FURNACE TERMINALS THERE IS A 24V HUM WITH A SCREW ON ONE SIDE OF THE MOTHERBOARD AND A 115V HU… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,968 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

7,634 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

< 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