HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
I have a 1 heat and 1 cool AC system (I guess it is called
I have a 1 heat and 1 cool AC system (I guess it is called conventional system). What should be the setting of Changeover valve for my new FocusPRO 6000 series thermostat? Should I choose O/B terminal… read more
airheatman
airheatman
HVAC Technician
9,934 satisfied customers
I have a carrier comfort 92 furnace. The fan comes on but
I have a carrier comfort 92 furnace. The fan comes on but the heat will not come on. The thermostat needed to be replaced a few months ago and we have not had to use the A.C. or heat much since the th… read more
Rick
Rick
Supervisor
25,282 satisfied customers
I'm having trouble getting A/C to work in my new NEST
I'm having trouble getting A/C to work in my new NEST installation. I live in a condo and replacing a White Rodgers 1E78 as seen here: http://www.emersonclimate.com/Documents/White-Rodgers/instruction… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,940 satisfied customers
I just bought an HP programmable thermostat. Foolishly I
I just bought an HP programmable thermostat. Foolishly I thought the color coded wires were correct, and didn't label them. When I turned on the heat, the AC went on. Can you help me fix this? … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,940 satisfied customers
I just put in a new Honeywell thermast, hook every color to
I just put in a new Honeywell thermast, hook every color to the right color, but when I turn on the ac, all I get is heat. What am I doing wrong?… read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
1,024 satisfied customers
My central cooling AC is not working after I flip the
my central cooling AC is not working after I flip the temperature control to ac instead of heat I keep getting heat with the burners in the furnace working as I am requesting heat… read more
airheatman
airheatman
HVAC Technician
9,934 satisfied customers
I have installed a Honeywell rth6350/rth6450 thermostat and
I have installed a Honeywell rth6350/rth6450 thermostat and followed the instructions to the T. However, whenever the heat kicks on, only cool air blows out. We have a heat pump. The wires on the old … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,369 satisfied customers
I have a Honeywell visionPro TH8000 running a lennox EL195UHE
I have a Honeywell visionPro TH8000 running a lennox EL195UHE gas furnace and a lennox Elite XP16 Heat pump My question is how to set the functions 0170 thru 0260 on the thermostat… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,940 satisfied customers
Hi tim Having trouble with my white-rodgers 1f89-211 electric
Hi tim Having trouble with my white-rodgers 1f89-211 electric ac/heat unit. Thermostat went blank and the unit stopped. Also the thermostat flashes from time to time. Can you help me with this issue?… read more
airheatman
airheatman
HVAC Technician
9,934 satisfied customers
I just purchased a Totaline p330-0220 on line. My old thermostst
I just purchased a Totaline p330-0220 on line. My old thermostst was a Braeburn 067. Coming out of the wall I have a red-orange-blue-yellow-lt.green-and white wire. My old Braeburn thermostat had red … read more
caleb
caleb
108 satisfied customers
Installed Honeywell thermostat RTH221, weeks ago. After several
Installed Honeywell thermostat RTH221, weeks ago. After several days of troubleshooting, finally got AC to turn on. Now it is cool outside. Heat won't come on.… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,940 satisfied customers
I have installed an RCT8100 to a Rheem RCBA 4873A521 furnace.
I have installed an RCT8100 to a Rheem RCBA 4873A521 furnace. The air coming from vents is not hot now. I made the mistake of connecting by wire color. How can I see if this wire configuration is corr… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,369 satisfied customers
we have a 10 yr old lennox elite 13 heat pump. In the past
we have a 10 yr old lennox elite 13 heat pump. In the past two years, we have had the outdoor tx valve, indoor tx valve, defrost board, and t stat replaced. Now, it is still not working properly, and … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,369 satisfied customers
I have a Totaline P330 series thermostat. I dont know how
I have a Totaline P330 series thermostat. I don't know how to change it from AC to heat.When I push the right side function button to change it from cool to heat, it will only go from cool to off. How… read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
I am replacing a Bryant thermostat P271-3456 with a Honeywell
I am replacing a Bryant thermostat P271-3456 with a Honeywell RTH8500. I connected all the wires but I get heat instead of cooling! Help… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,369 satisfied customers
Trying to install Honeywell 3100c non programable thermostat
Trying to install Honeywell 3100c non programable thermostat on 1 1/2 ton Weather king Heat pump,and advanced air handler products blower unit. Split system. 7.5kw aux heat strips. I can get the aux h… read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
how do I replace old 2 mercury duel fuel thermostat with new
how do I replace old 2 mercury duel fuel thermostat with new VisionPro TH8320? I have a new ICP furnace and new Payne heat pump/AC… read more
Kenton Guidry
Kenton Guidry
HVAC Technician
Vocational, Technical or Trade Scho
963 satisfied customers
i am changing the thermostat in my house from a white-rodgers
i am changing the thermostat in my house from a white-rodgers type 1f58-77 to a honeywell rth230b. the wires that were hooked up to the old thermostat are a red, white, blue, orange and green. how do … read more
Mark Henley
Mark Henley
HVAC Controls DDC
3,216 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