HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
I am getting three blinks, the furnace starts runs for a few
I am getting three blinks, the furnace starts runs for a few minutes and shuts off … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,875 satisfied customers
My Rheem 90s classic wont fire up...the fan runs but it
My Rheem 90s classic wont fire up...the fan runs but it won't light then the fan shuts off minutes latter..Help … read more
D.E. Anderson
D.E. Anderson
Industrial Refrigeration Service Manager
200 satisfied customers
I have a Gibson gas furnace model number KG6RC 080C-12B. It
I have a Gibson gas furnace model number KG6RC 080C-12B. It is 10 years old. A few weeks ago, it stopped working. I was able to determine that the problem was that the inducer motor was fire hot and w… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
My Trane xr90 will not heat. Get 3 flash for code. Help!
Have a Trane xr90. Will not heat. Get 3 flash for code. If I pull the air line from the gas valve heat comes on. Any ideas? Flashes to show demand for heat. goes thru cycles. then 3 flashes (pressure … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,875 satisfied customers
Nordyne 703911, makes noise, fan won't come on and heat... 2
Customer: Nordyne 703911, makes noise, fan won't come on and heat... 2 red flashes ("pressure switch is open") replaced pressure switch, still does same thing … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
7,807 satisfied customers
Ok I have a Goodman heater I dont know the model but its
Ok I have a Goodman heater I don't know the model but it's 12 year old. 2 days ago the heater wouldn't work at all I mean nothing came on. It was setting a codes 3 for the pressure switch. I found the… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
RHEEM Model #RRKA-A042JK10E, calling for heat, induction fan
RHEEM Model #RRKA-A042JK10E, calling for heat, induction fan runs, but no gas and no pop (spark igniter). Forced draft safety switch looks OK (closed circuit when induction fan runs, open circuit when… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
Rheem Classic 90 Furnace - burners not staying lit Model:
Rheem Classic 90 Furnace - burners not staying lit Model: RGRJ-10E2AJS Mfg Date: 9/2003 My Rheem Classic 90 furnace is not staying lit. The igniter works correctly and the burners ignite. They burn fo… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
Good afternoon, Goodman GMPN060 -3 Rev B led blinks 3 times on
Good afternoon, Goodman GMPN060 -3 Rev B led blinks 3 times on call for heat, fan starts, gas flows, ignitor does not glow. Replace ignitor, as I have done almost every 2 years? If you agree, please c… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
Good morning, I have a Trane XL 80. The heater is not coming
Good morning, I have a Trane XL 80. The heater is not coming on. The furnace filter is clean, igniter is clean, and the sensor near the burners is clean. When the unit tries to start it goes thru the … read more
servtech50
servtech50
HVAC/R service tech
296 satisfied customers
I just got a response to my question, thanks. I remembered
I just got a response to my question, thanks. I remembered another related issue. When this furnace (Lennox G32075) is running I can disconnect the vacuum/pressure tube from gas valve and the furnace … read more
MRANSWER
MRANSWER
TECHNICIAN
Bachelor's Degree
6,158 satisfied customers
Hiel furnace wont re ignite after winter shutdown. Ignitor
Hiel furnace won't re ignite after winter shutdown. Ignitor is working but does not let the pilot gas to flow. Gas checked and pressure is O.K. What to do next.… read more
Rick Mather
Rick Mather
HVAC Technician
Vocational, Technical or Trade Scho
3,133 satisfied customers
I have an Arcoaire Model # XXXXX Currently the diagnostic
I have an Arcoaire Model # XXXXX Currently the diagnostic is blinking 3 times indicating an open pressure switch when it should be closed. Are there other troubleshooting tips I can try to verify this… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,875 satisfied customers
Trying to find out what a second pressure switch is for. We
Trying to find out what a second pressure switch is for. We have an Armstrong/Lennox forced air heater CG90TB that stopped working. We have three red flashes on the board which means pressure switch p… read more
MagiicAir
MagiicAir
HVAC Service Supervisor
Vocational, Technical or Trade Scho
110 satisfied customers
Have a Rheem RGDC-12EE1Jr - the induced draft motor will start,
Have a Rheem RGDC-12EE1Jr - the induced draft motor will start, the pilot will start but the burners won't light - relay under vacuum sensor will click - is the vacuum bad or the relay? Will work some… read more
Heath
Heath
Vocational, Technical or Trade Scho
1,027 satisfied customers
Carrier furnace not working. Fan comes on, but no heat. Help
Carrier furnace not working. Fan comes on but no heat or ignition of the gas. LED shows #23 pressure switch problem. Checked OHM for pressure switch and rollout switch; both checked out ok. What shoul… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
Im helping a neighbor with an older Day and Night natural
I'm helping a neighbor with an older Day and Night natural gas furnace. There is a great answer from this forum dated 1/11/09 that answers 99% of my problems as the symptoms are nearly identical. Righ… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,875 satisfied customers
I have a modelG9to8o12UPB13C coleman heating system the led
I have a modelG9to8o12UPB13C coleman heating system the led light is flashing 3 times and there is no heat, the chart says that the pressure valve is stuck open can i repair or reset this?… 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
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