HVAC

Have HVAC questions? Ask an HVAC Expert for answers

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

Related HVAC Questions
Bought new RTH9585, old thermostat had a jumper wire rc -
Second opinion] Bought new RTH9585, old thermostat had a jumper wire rc - rh. Put red wire in R slot, other wirr… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,233 satisfied customers
Second opinion]. I am replacing older TPI corporation base
Second opinion] hi Douglas. I am replacing older TPI corporation base board heater thermostats, with honeywell ct410b. The old ones has two red and two black wires. how do I connect them to the new on… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
10,114 satisfied customers
I have a gas heating Armstrong home furnace, model #:
Second opinion] Hello, I have a gas heating Armstrong home furnace, model #: MG66-110D2C4-2, for my mobile home. PG&E assessed that I need a new control valve. The current one was leaking. Where I can… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
10,114 satisfied customers
Second opinion] Mt thermostat is reading error with a water
Second opinion] Mt thermostat is reading error with a water sign… read more
HvacmanSean
HvacmanSean
Owner
HVAC
234 satisfied customers
I currently have a Rheem rhc-tst401mdms thermostat
I currently have a Rheem rhc-tst401mdms thermostat installed. I bought a new Honeywell remote z-wave thermostat and want to wire it. I see the RC and R terminals with a bridge, the Y G and C terminals… read more
Michael Ferryman
Michael Ferryman
110 satisfied customers
Phil. Here is my situation. I live in a 820 sq ft home.
Hi Phil. Here is my situation. I live in a 820 sq ft home. I've had an issue with my central air now for the past three years, with it cycling on and off repeatedly for a few minutes before it kicks i… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
I am installing a Honeywell RTHRTH6580WF thermostat on a Trane
I am installing a Honeywell RTHRTH6580WF thermostat on a Trane GEV unit. I am unable to get any heat on the heat and emheat settings. I do get cold air on the cool setting. My old thermostat is Robert… read more
MRANSWER
MRANSWER
TECHNICIAN
Bachelor's Degree
6,158 satisfied customers
Lennox furance will not turn on. The fan will not even turn
Lennox furance will not turn on. The fan will not even turn on from thermo. No ice on any pipes. Everything has power. Upon looking inside noticed control panel lights. Top one labeled speed. Green li… read more
Comfort Specialist
Comfort Specialist
Mechanical Designer & Estimator
Vocational, Technical or Trade School
1,368 satisfied customers
Hi, I am replacing and old Honeywell square thermostat.
Hi, I am replacing and old Honeywell square thermostat. However I have two issues. One issue is I don't know how to open the front cover to get access to the thermostat wires. The second issue is that… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,233 satisfied customers
Now for the second question - what other terminal do I use
Now for the second question - what other terminal do I use for the pellet stove wiring besides the Auxiliary terminal?… read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
I have a Carrier Synergy 2000 heat pump. When in heat mode,
I have a Carrier Synergy 2000 heat pump. When in heat mode, after heat demand has been satisfied by the thermotat, the compressor and indoor circulator fan continue to run, causing the house to heat u… read more
hvac-technician
hvac-technician
Service Manager
Vocational, Technical or Trade Scho
62 satisfied customers
Im changing a white rogers thermostat that has 4 wires, blue
I'm changing a white rogers thermostat that has 4 wires, blue white red green and the thermostat has the red wire in it already connect to the rc and rh terminals. I've connected the wires to terminal… read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
I just installed a honeywell L7224U aquastat and my oil fired
I just installed a honeywell L7224U aquastat and my oil fired hot air unit is calling for heat, My boiler runs and then shuts off for 3 seconds and then back on all the while the fan is running, why i… read more
Rick Mather
Rick Mather
HVAC Technician
Vocational, Technical or Trade Scho
3,133 satisfied customers
I have a Lennox G6/MPV-60C-090 & XC21-048 with two 81M27 Signature
I have a Lennox G6/MPV-60C-090 & XC21-048 with two 81M27 Signature Stats running two zones with a Harmony III. I am thinking about changing the main stat to an Intwine IECT220 so i can access it over … read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
768 satisfied customers
i have the thermotat set at 52. it is set for cool with automatic
i have the thermotat set at 52. it is set for cool with automatic fan on and heat is coming from the vents… read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
768 satisfied customers
i have trane unit, i was conecting thermostat but the A/C is
i have trane unit, i was conecting thermostat but now the A/C is not working, what a can do if i did something to make de A/C unit get broke.… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,965 satisfied customers
im installing a didital thermostat, none of the wires are labeled.
im installing a didital thermostat, none of the wires are labeled. I have a green, white, reb, blue, and yellow. The terminals on the new thermostat are labeled G, RC, RH, Y/O, W/B, and Y1. Where do I… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,965 satisfied customers
I am trying to hook up my hunter 44550, it has 6 wire ports,
I am trying to hook up my hunter 44550, it has 6 wire ports, my old unit has 8, including an O and B, also, a x2 and T… read more
Kenton Guidry
Kenton Guidry
HVAC Technician
Vocational, Technical or Trade Scho
963 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

10,114 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