HVAC

Have HVAC questions? Ask an HVAC Expert for answers

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

Related HVAC Questions
The A/C has been off all night and morning because the
The A/C has been off all night and morning because the termperature was moderate overnight. When I turned the A/C back on around 1:00 the compressor (outside unit) would not come on but gives an occas… read more
airheatman
airheatman
HVAC Technician
6 years college
10,152 satisfied customers
11-12 yr old XE80. I changed blower motor capacitor last
11-12 yr old XE80. I changed blower motor capacitor last night and a/c worked fine for about 2 hours, then shut off and now blower motor tries to start but won't with a very loud humming noise. Did I … read more
Papatrexas
Papatrexas
General contractor
Vocational, Technical or Trade School
70 satisfied customers
Friedrich SL 28N30 Kuhl- after running fine hour, unit makes
friedrich SL 28N30 Kuhl- after running fine for an hour, unit makes a humming sound 3 times before he compressor kicks on. sounds like its trying to engage th first 2 times. is this normal? i tried co… read more
airheatman
airheatman
HVAC Technician
6 years college
10,152 satisfied customers
20 year old Carrier, the blower motor was just humming and
20 year old Carrier, the blower motor was just humming and would not turn. I replaced the capacitor and it ran fine for about 20 hrs. in the Fan On mode and AC running, then just stopped and motor is … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
i have a Trane xe90 and the blower wont kick on. it ignites
i have a Trane xe90 and the blower wont kick on. it ignites and everything but the blower wont kick on.… read more
Appliance Guru
Appliance Guru
18,987 satisfied customers
I habe a TRane TWE036C14080 airhandler - it was not pushing
I habe a TRane TWE036C14080 airhandler - it was not pushing air. First thing, the tsat had low battery, fixed that, looked at consenser- line iced up, so shut her down. Checked air handler to see if f… read more
R.G.
R.G.
318 satisfied customers
I have a Temp Star Heat pump. It has begun to make a humming
I have a Temp Star Heat pump. It has begun to make a humming noise, and freezing up. The fan in the outside unit doesn't turn, but if I take a piece of wire and turn the fan a time or two, the fan wil… read more
Jerry
Jerry
Plumber
High School or GED
1,904 satisfied customers
my furnace motor is humming (its an oil furnace) with a large
my furnace motor is humming (it's an oil furnace) with a large squirrel type fan pulling cold air in through the heat exchanger. When I manually turn the fan (fast), the system will start, but for som… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
I have a unit in a wall sleeve, around ten years old. When I
Hi. I have a unit in a wall sleeve, around ten years old. When I turn it on, it works fine for a little while, then stops blowing air while it continues to hum. If I run it on low, it will actually wo… read more
Appliance Tech Larry
Appliance Tech Larry
Outside inhome service tech
High School or GED
19,156 satisfied customers
Hi, I have a Carrier 38CKC030 from 2003. Today, the house
Hi, I have a Carrier 38CKC030 from 2003. Today, the house started heating up with the A/C on. We keep it on almost constantly from April thru October. (Set on 70, outside temp hit 90 today). Inside bl… read more
Tom
Tom
HVAC Technician
Vocational, Technical or Trade Scho
770 satisfied customers
armstrong concept 10 outside unit. a/c not cold. air blows
armstrong concept 10 outside unit. a/c not cold. air blows thru registers on auto setting, but is not cold. fan on outside unit was not running, but I gave blade a push and now is running. no low humm… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
ac works however fan/compressor cuts out at times contactor
ac works however fan/compressor cuts out at times contactor is new capacitors appear fine changed filters… read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
I have a Model 38ycc048340 heat pump. The compressor has been
I have a Model 38ycc048340 heat pump. The compressor has been very loud and had an audible high and low volume dull hum. It has stopped working. I opened the panel and found a blown run capacitor. I c… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
I have Trane XE 80 and the condenser fan stopped working when
I have Trane XE 80 and the condenser fan stopped working when someone turned air conditioner down very low. It just hums.… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,968 satisfied customers
Upstairs heat pump quit working, fan will not turn and compressor
Upstairs heat pump quit working, fan will not turn and compressor will not kick on. Contactor is engaging and humming. I pushed the fan with a stick and got it running at about 1/2 to 3/4 speed, so I … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,968 satisfied customers
Removed filter and reinstalled. Now fan motor makes humming
Removed filter and reinstalled. Now fan motor makes humming noiese, gets very hot and then goes to very slow speed. Much slower than low fan speed. Also no difference in fan speeds.… read more
Rick Mather
Rick Mather
HVAC Technician
Vocational, Technical or Trade Scho
3,133 satisfied customers
My house AC unit is humming but will not turn on. The cover
My house AC unit is humming but will not turn on. The cover on the top where the fan motor is bolted to is also rather hot. Any ideas why it will not turn on? It worked fine until I turned it off this… read more
Mark Henley
Mark Henley
HVAC Controls DDC
3,216 satisfied customers
NorDyne C38A-042U8 Electric Heat/Air Blower Motor not working.
NorDyne C38A-042U8 Electric Heat/Air Blower Motor not working. Was working, then intermitently, now not at all. Whe it did come on it did not sound like it was laboring or hard starting. Came on just … read more
ComfortZone
ComfortZone
Associate Degree
515 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