HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
We have two Vitdedens 200's that were installed in our
We have two Vitdedens 200's that were installed in our Vermont home in 2005 by John Hull, Locust Creek, Bethel, VT. They have operated well for years but have been faulting continuously for 3 months and Hull refuses to service our home (we suspect it is due to his homophobia). So we are constantly without heat or service. … read more
Rick
Rick
Supervisor
24,956 satisfied customers
I have a Heil 90% gas furnace that constantly short cycles.
I have a Heil 90% gas furnace that constantly short cycles. I have been told that my 2nd heat exchanger "may" be stopped up and that I am in need of a new furnace. He recently replaced the control boa… read more
Jason
Jason
Mentor Service Technician
Associate Degree
729 satisfied customers
Hi. I have a 2007 Rheem 13 SEER R 22 Heat pump / AC unit.
Hi. I have a 2007 Rheem 13 SEER R 22 Heat pump / AC unit. Last year (2001) it wasn't keeping up with cooling when we turned on in the spring. We called a contractor who came out and re-charged the sys… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
i have a XL 1200 and it is running fine , but the air is not
i have a XL 1200 and it is running fine , but the air is not cold. i had a Trane technician do a check and cleaning last week and it was cooling ok. He said we needed to replace the unit and offered t… read more
Comfort Specialist
Comfort Specialist
Mechanical Designer & Estimator
Vocational, Technical or Trade School
1,368 satisfied customers
I have a first generation vitodens 100-W boiler that goes into
I have a first generation vitodens 100-W boiler that goes into "reset" once in a while and now quite frequently. the fault code is F9. I will have the boiler serviced anyway but is there anything I ca… read more
Appliance Guru
Appliance Guru
18,657 satisfied customers
My gas-fired HVAC unit is only firing intermittently. Sometimes
My gas-fired HVAC unit is only firing intermittently. Sometimes it does not kick on for extended periods of time, despite the thermostat settings being set properly to heat/auto. The igniter glows, an… read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
We have just tried to start our gas boiler [Viessmann Vitodens
We have just tried to start our gas boiler [Viessmann Vitodens 100] as we have been away for several weeks but it won't light. The fan starts but the gas doesn't ignite and after 30 seconds or so it s… read more
Jerry M.
Jerry M.
Senior HVAC Technician
High School or GED
153 satisfied customers
I replace a 4 year old Airease with a Ducane 3 ton 13 seer
I replace a 4 year old Airease with a Ducane 3 ton 13 seer R-22 13HPD. When it was charged and turned on the technician said a 'vaccumm' developed in the lines either on the high or low side that caus… read more
Richard
Richard
District Technical Manager
Vocational, Technical or Trade Scho
1,514 satisfied customers
My new Trane system (Model #TAYWARS082) was just installed
My new Trane system (Model #TAYWARS082) was just installed on May 12, 2011. About a week ago we noticed that the system was shutting down periodically for long periods of time and the temprature upsta… read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
The outside unit will power up for a couple of minutes then
The outside unit will power up for a couple of minutes then shut off and a get a red light on the thermostat. I have clean the coils with the recommended foam hydorchoric cleaner but it has not helped… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
I have a Lennox G61MP series furnace that is on its second
I have a Lennox G61MP series furnace that is on its second winter. It seems to work fine for several cycles and then fails to respond to a call for heat. Turning the power on and off resets it and it … read more
KenCan
KenCan
Vocational, Technical or Trade Scho
111 satisfied customers
Good afternoon, Ive worked on furnaces and hot water heaters
Good afternoon, I've worked on furnaces and hot water heaters in the past. My son has a gas hot water heater with a White Rodgers gas valve. The pilot was going out and he would relight it. I replaced… read more
Rick
Rick
Supervisor
24,956 satisfied customers
have a ducane ac model Ac12b24 thats not blowing cold air.
have a ducane ac model Ac12b24 thats not blowing cold air. The compressor and is ok its been pressure checked and charged up but still not cold. Condensor coils have been cleaned. don't know where eva… read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
Hello. I have a 6-year-old Trane. Just had my 2nd service call
Hello. I have a 6-year-old Trane. Just had my 2nd service call on it yesterday,in as many days. The tech came out 2 days ago & found that it was low on freon. Everything else was fine. He put the freo… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
I have had a vitodens 100 in my new home for a year it has
I have had a vitodens 100 in my new home for a year it has given me constant problems, it gives an F5 error code usually at about 5 oclock on a friday, I had a tech replace the sticky flapper but it s… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
I am looking for a service bulletin for Arco Aire gas Furnace.
I am looking for a service bulletin for Arco Aire gas Furnace. I have sludge in my condensation chamber and drain tube, causing a pressure switch to act open, when it should be closed. (Diagnostic cod… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,878 satisfied customers
I have a 4 ton Carrier centralized split system a/c unit .
I have a 4 ton Carrier centralized split system a/c unit . The out side fan seems to be running fine, but it is not blowing cool air. I called a technician and he said to replace the unit. He seem to … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,878 satisfied customers
I turned on my central air last night, it started blowing cold
I turned on my central air last night, it started blowing cold air and within a few minutes it was blowing hot air. I did use the air back in April and it worked just fine. What could cause this...cou… 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

7,634 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