HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
I'm installing a new Honeywell Wi-Fi Smart Color Thermostat
I'm installing a new Honeywell Wi-Fi Smart Color Thermostat (RTH9585WF)replacing an old mercury thermostat. As there were no C wire available a have ran a new wire and connected to the C possition on … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,870 satisfied customers
I live in a highrise condominium with 2 A/C systems. Both
Hi, I live in a highrise condominium with 2 A/C systems. Both thermostats are Honeywell T8112D1005 (1). They also control my electric baseboard heaters. … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,870 satisfied customers
I have a Trane electric furnace on which I have just changed
I have a Trane electric furnace on which I have just changed the thermostat. There is no power between the W (white wire) terminal and the R (red) terminal. the R and RC are jumpered and the cooling a… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
I have a Lennox heat pump w/ electrical aux/emergency heat,
Hi there, I have a Lennox heat pump w/ electrical aux/emergency heat, approx. 6-7 years old (can get exact model # ***** I get home). I installed a Nest thermostat the same as the old one (R, C, G, Y,… read more
Appliance Guru
Appliance Guru
18,639 satisfied customers
I just purchased a Honeywell programmable thermostat to
I just purchased a Honeywell programmable thermostat to replace a very old mercury based themostat. I wired the system according to the instructions but the heat came on not the air conditioner. I had… read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
Will this tstat work with the emergency heat function
Will this tstat work with the emergency heat function. Honeywell rth6580wf. I installed it by the heat pump wiring and unit would not cut off when commanded to. It would just run. I am worried about t… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
I have a heat pump with air handler inside and an out side
I have a heat pump with air handler inside and an out side unit. Trying to install a new Honeywell RTH7500D thermostat. My old Mercury switch unit was wired y to y,g to g,r to r, brown to o, white to … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
Ive been having problems with my AC for a week or so, finally
I've been having problems with my AC for a week or so, finally had a technician out Wednesday and he said the freon was low and added it. Everything seemed to be fine. Yesterday, I replaced the old me… read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
Hi, I am installing a programmable thermostat in our home
Hi, I am installing a programmable thermostat in our home and I've run into issues. My HVAC system is a wood-fired forced-air furnace with electric backup and A/C. The system was wired with 2 separate… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,870 satisfied customers
I just bought a honeywell RTH8580wf programmable thermostat.
I just bought a honeywell RTH8580wf programmable thermostat. I am replacing an old mercury 2-wire thermostat. I purchased a 24V transformer and connected the wires to the R (the RC terminal is jumpere… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
I have a Honeywell manual thermostat wire connections are (yellow,
I have a Honeywell manual thermostat wire connections are (yellow, Y1, )(Red, R,Rc, )(Green, G)(Blue,W2)(White,W1. I've upgraded to a Honeywell programmable thermostat model#RTHL2510/2410 terminal con… read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
1,024 satisfied customers
Trying to change over from a mercury thermostat White Rodgers
Trying to change over from a mercury thermostat White Rodgers modelLR27935 to a programmable made by Ritetemp model 8022. I have tried all configurations in their book but can't make it run. Wire colo… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
I have an older 2 wire heating and coling system with a nechanical
I have an older 2 wire heating and coling system with a nechanical thermostat. I would like to replace the thermostat with a newer, programmable one. Is this possible. If so are there special models o… read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
I have an old mercury thermostat with five wires and a jumper
I have an old mercury thermostat with five wires and a jumper and just bought a RLV3120A two wire thermostat. I have no idea how to connect it because the directions say to connect whatever wire to wh… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,870 satisfied customers
I am looking to replace my outdated mercury thermostat with
I am looking to replace my outdated mercury thermostat with a programmable thermostat. Currently it is a Bryant Heat Pump system, with numebrs on the thermostat saying P271-3457 and 3AAT86BI4AI. The w… read more
N4IEA
N4IEA
Customer Service
Associate Degree
227 satisfied customers
I am trying to replace my old Thermostat with a new Honeywell
I am trying to replace my old Thermostat with a new Honeywell "Prestige Thermostat" Programmable 7 day thermostat. Only problem i am running into is I have one stray wire i dont know where it goes. Ev… read more
Rick Mather
Rick Mather
HVAC Technician
Vocational, Technical or Trade Scho
3,133 satisfied customers
I had a Rheem thermostat model Q674L 1504 and am replacing
I had a Rheem thermostat model Q674L 1504 and am replacing it with a Homeywell RTH7500 series. Fan comes on but the outside unit does not come on. Entire system was checked by technician and his analy… read more
Richard
Richard
District Technical Manager
Vocational, Technical or Trade Scho
1,514 satisfied customers
Replacing thermostat for an XE 1000. Instructions for Rite
Replacing thermostat for an XE 1000. Instructions for Rite Temp thermostat say for a Trane heat pump, connect the B wire to the thermostat's C terminal. Does this seem right? And if I do, what do I do… read more
coolman1973
coolman1973
AC/Heat Tech
Vocational, Technical or Trade Scho
162 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