HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
I am trying to replace honeywell thermostats with NEST. Just
Hi, I am trying to replace honeywell thermostats with NEST … read more
airheatman
airheatman
HVAC Technician
9,567 satisfied customers
We have this Honeywell thermostat and can anyone tell where
Hello, we have this Honeywell thermostat and can anyone tell where the wires hook in, we have two wires coming out of the wall, one goes to W we believe and the other goes to R do we remove the jumper… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I have a simple non programable Honeywell theromostat i
Hi I have a simple non programable Honeywell theromostat i think is rth111b with dead batteries. How do I open it? thanks … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
I sure hope so, weeks, if I can, i have a trane thermostat
i have a trane thermostat and i want to install a new Honeywell one on the trane unit there is a r1 wire but no r1 terminal on the Honeywell stat … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
Douglas, the screen on my Honeywell thermostat went blank.
Hi Douglas, the screen on my Honeywell thermostat went blank. One of the batteries was corroded. I changed them and that did not work. Then I realized the battery contact itself is corroded. The unit … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,978 satisfied customers
I am not at the house, so I cannot check the heater but, I
I am not at the house, so I cannot check the heater but, I had a Honeywell VisionPRO® IAQ Total Home Comfort System that was digital and does not require batteries. The T\Stat display died (would not … read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
1,024 satisfied customers
I need to replace a Lennox Programmable Thermostat
I need to replace a Lennox Programmable Thermostat SignatureStat 51M26 9801iLX that is no longer manufactured. What is another thermostat option that would work for this purpose? Thank you… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
Im trying to change from a Honeywell Pc 8900 t-stat to a nest
im trying to change from a Honeywell Pc 8900 t-stat to a nest t-stat. the problem is the wires connect to the honeywell are only labeled 1,2,3,4 instead of y1;y2;g;w ect… read more
airheatman
airheatman
HVAC Technician
9,567 satisfied customers
Honeywell ST9420C installed with a DT92E about 18 months ago.
Honeywell ST9420C installed with a DT92E about 18 months ago. Heating not working prompted an investigation only to find that the Programmer had flashing RF and Heating icons on screen and a "No signa… read more
servtech50
servtech50
HVAC/R service tech
216 satisfied customers
I have a honeywell t8775c & recently found out that even though
I have a honeywell t8775c & recently found out that even though it is a POWER-STEALING t-stat, that it still has a LITHIUM BATTERY which when I called Honeywell, they called it the CAPACITOR & that it… read more
airheatman
airheatman
HVAC Technician
9,567 satisfied customers
Hi, I have a Honeywell Chronotherm III Thermostat in the home
Hi, I have a Honeywell Chronotherm III Thermostat in the home I just purchased last year. I am having problems in that the Thermostat will not function continuously. I keep getting a Repl Battery mess… read more
M Oglesby
M Oglesby
Vocational, Technical or Trade Scho
2,010 satisfied customers
I have been in a new house for about 10 months. The White-Rodgers
I have been in a new house for about 10 months. The White-Rodgers thermostat type IF86-241 has never read the room temperature accurately; it reads between 4 and 5 degrees below the actual temperature… read more
MagiicAir
MagiicAir
HVAC Service Supervisor
Vocational, Technical or Trade Scho
110 satisfied customers
How do you wire a Honeywell RTH7500 to a taco pump relay bank
How do you wire a Honeywell RTH7500 to a taco pump relay bank (503)? 24VAC to R (remove jumper between R an Rc), Common to C, but what do you do in the thermostat to get the simple contact closure bet… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
Have Honeywell Vision Pro TH8110U1003 Programmable T-stat for
Have Honeywell Vision Pro TH8110U1003 Programmable T-stat for use with my Peerless PI-T80 hot water boiler. If I use the batteries in the t-stat for power, which t-stat terminals do I connect to for t… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
i just purchased a honeywell non programmable thermostat model
i just purchased a honeywell non programmable thermostat model rth111. ineed to connect it to a relay box for my radiant floor heat. i need help connecting the wires. the relay box has four terminals … read more
Richard
Richard
District Technical Manager
Vocational, Technical or Trade Scho
1,416 satisfied customers
I have a Trane Gas 2-Stage furnace with Trane A/C. It has
I have a Trane Gas 2-Stage furnace with Trane A/C. It has a White Rodgers control module #50A51-495. I would like a simple, digital, inexpensive, non-programable thermostat that is easy to install. Wh… read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
can you help! iam looking for a timed room thermostat to replace
can you help! iam looking for a timed room thermostat to replace an existing 20amp honeywell thermostat on an electric concrete floor heating system.… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,426 satisfied customers
I have a HoneyWell programmable thermostat model TH8110u1003.
I have a HoneyWell programmable thermostat model TH8110u1003. It has been in good working order since 2006. The batteries recently ran low, and once they were replaced, it has not worked properly. The… read more
Rick Ridley
Rick Ridley
UK Heating Engineer
30 years on the tools
871 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

7,426 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