HVAC

Have HVAC questions? Ask an HVAC Expert for answers

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

Related HVAC Questions
With t-stat in autofan furnace fires and shuts down after
With t-stat in autofan furnace fires and shuts down after few seconds.realized blower was not running, set t-stat to fan on, furnace fired and ran fine. Lennox unit g23q3/4-100-6. S/n 5898l 39839. Whe… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
Trane XV 80 furnace low speed fan run's always. W1 and W2
trane XV 80 furnace low speed fan run's always. W1 and W2 jumped together and R and G jumped together… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,271 satisfied customers
I have a PG8MAA036070 furnace that the blower won't shut off.
I have a PG8MAA036070 furnace that the blower won't shut off. It only shuts off when switch to off… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,970 satisfied customers
I have a robert shaw 300-252 thermostat an I tried adding a
I have a robert shaw 300-252 thermostat an I tried adding a de-humidistat (honeywell IAQ de-humidify contacts) in series with the yellow wire. When the humidity is below the set point the compressor s… read more
Casey
Casey
MANAGER
High School or GED
29 satisfied customers
my compressor is running continoulsy. The blower will only
my compressor is running continoulsy. The blower will only run in auto position with the compressor is disconnected or in the on position with the compressor running.… read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
I have a Nordyne model E2EB-015HA electric furnace.
I have a Nordyne model E2EB-015HA electric furnace. Sometimes we use just the fan to circulate air. Today it stopped working and apparently made a loud "whoosh" noise as it quit. Its controlled by a H… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,271 satisfied customers
Furnace Question: This is an old (early 80s style carrier
Furnace Question: This is an old (early 80's style carrier model 58SSB095-BC). The sympton is that the house blower runs whenever there is a call for heat. I have check for continuity across the heat … read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
Billy, you helped me last year with an AC problem...I have
Billy, you helped me last year with an AC problem...I have a new one for you. Lennox G51MP with 97L48 SureLight Control AC does not stay running, here is the detail. 1. T-stat demands cool 2. Outside … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,970 satisfied customers
hi there. i have a carrier heating/ac unit that the fan will
hi there. i have a carrier heating/ac unit that the fan will not shut off. i disconnected the t-stat and replaced the t-stat. only if i shut off the main breaker or the units breaker will the fan shut… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
i am working on a coleman furnace that has ac also. It is a
i am working on a coleman furnace that has ac also. It is a model # XXXXX The home owner replaced the t stat. It only has two wires. I can't get the cooling to kick off unless i shut it off at the fur… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
let me try again i am installing a cond unit on an older coleman
let me try again i am installing a cond unit on an older coleman gas furnace it has intherm blower motor with fan relay and other elect mounted on blower 2 transformer system 2 wires comeing out of re… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,634 satisfied customers
I have a Honeywell H46C1000 humidstat that was connected to
I have a Honeywell H46C1000 humidstat that was connected to a White Rogers T-stat, 1F83-261. It is now disconnected and I wouild like to reconnect too the T-stat for humidity control. Thanks.… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
I have a 1985 model Bryant gas fired furnace with AC. The blower
I have a 1985 model Bryant gas fired furnace with AC. The blower does not want to shut off unless I shut off the power disconnect to the furnace and it is also cycling on and off in heating. It runs f… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,970 satisfied customers
Have Rheem heating and air unit. Burner will come on, but
Have Rheem heating and air unit. Burner will come on, but fan does not always energize. Will come on when I manually dial the heat up, but will not turn on as temp coasts back down in the house, even … read more
DanielC
DanielC
Service manager
High School or GED
95 satisfied customers
I have a Trane XB12 split unit. The system will not shut off
I have a Trane XB12 split unit. The system will not shut off when it reaches it's temperature command at the thermostat. I came home yesterday, the temp was set at 80 deg., but the system cooled to 69… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,970 satisfied customers
I have a Ruud Silhouette II and it quit running a while ago.
I have a Ruud Silhouette II and it quit running a while ago. The ok light blinks 5 times and then repeats. I have checked the outside unit and it runs fine, and I put a different t-stat on and it made… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,970 satisfied customers
I have a lennox furnace and I connected wires from my t-stat
I have a lennox furnace and I connected wires from my t-stat to the furnace. I ran a red wire to R from the t stat to the furnace, and a white wire to the W from the t stat to the furnace, and I ran a… read more
Rick or Nick in Texas
Rick or Nick in Texas
General Manager-Lead Tech
Own and run HVAC business 29yrs
44 satisfied customers
Why my furnace blows hot air and doesn't shut off?
My furnace won't shut off. It is blowing hot air. I can turn it on and off manually, but I can't turn it on and set a temp. It just stays on no matter how hot the house gets. 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

7,634 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