HVAC

Have HVAC questions? Ask an HVAC Expert for answers

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

Related HVAC Questions
Goodman furnace has 4 flashes. Dirty, but not clogged
Replaced one limit switch, but didn't solve the problem… read more
Rick
Rick
HVAC Supervisor
25,734 satisfied customers
My Lennox elite series furnace sometimes doesn't come on. If
My Lennox elite series furnace sometimes doesn't come on. If I flick the breaker switch for it on the fuse box it comes back on for a few cycles, sometimes for a few hours or days but then will do it … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,227 satisfied customers
I have a 80. I installed it about 10 years ago. About 3
I have a Bryant 80. I installed it about 10 years ago. … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,227 satisfied customers
I have a goodman furnace. It will turn on the initial blower
I have a goodman furnace. It will turn on the initial blower to prepurge, then it will ignite and as soon as the main blower turns on, the flame will go out. It will keep igniting and going out for a … read more
Rick
Rick
HVAC Supervisor
25,734 satisfied customers
I am have a problem and needing help to identify a solution,
Hi I am have a problem and needing help to identify a solution … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,227 satisfied customers
Possibly. I just replaced a failing RobertShaw ignition
Possibly. I just replaced a failing RobertShaw ignition control with a Honeywell unit. Lennox G20Q3/4X recommended replacement. I am getting a persistent 6-flashes which acc. to manual is a 5 m lockou… read more
Tim Ohms
Tim Ohms
HVAC Journeyman
35 satisfied customers
Code on Norddyne furnace shows one hour lock out. How do I fix it?
Have a Norddyne furnace. Code shows one hour lock out. How do I fix it? Furnace's filters are clean and had a tech clean the flame sensor. Still does it. They are trying to rip me off on parts. It was… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,227 satisfied customers
I have a blinking flame sensor light and replaced the board
I have a blinking flame sensor light and replaced the board (after some other checks) with a newer board that says it is for my Rheem Classic 90 Plus furnace. But the flame sensor light doesn't blink … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,227 satisfied customers
I have a Rheem GRM about 10 years old. It goes through it's
Hi there. I have a Rheem GRM about 10 years old. It goes through it's cycle, it does ignite but the flame LED on the control board remains off, so the cycle stops. I have replaced the flame sensor and… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,227 satisfied customers
Ihave a model 90RJ/90TJ down flow high efficiency gas forced
Ihave a model 90RJ/90TJ down flow high efficiency gas forced air system and my system when the fan kicks on the flame turns off. It has been in this mode for 6 hours or so, seemed to work fine yesterd… read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
I have a rheem criterion 2 furnace. Flame lights for five seconds
I have a rheem criterion 2 furnace. Flame lights for five seconds and then shuts off. Does this twice more and then locks out. I have cleaned the flame sensors pretty well (I think). The center and le… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
hi i have a heil N8MPNO75B12B1 furnace. it give me six flashes
hi i have a heil N8MPNO75B12B1 furnace. it give me six flashes during for diag. it refers to " failure to ignite or flame sense lost while running. the flame does come on but turns off after a few sec… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,963 satisfied customers
I have a tempstar furnace. For the past few days-the furnace
I have a tempstar furnace. For the past few days-the furnace will kick on-I hear the motor run, then the gas burners kick on-then the warm air is forced out. The problem is-it stays on until the house… read more
ClimateCreator
ClimateCreator
Service Manager
49 satisfied customers
my furnace fires up to cycle but as soon as the blower kicks
my furnace fires up to cycle but as soon as the blower kicks in the burner shuts off. what is crapped otu?… read more
Jerry
Jerry
Plumber
High School or GED
1,904 satisfied customers
Post-Flood, New Burnham series 2, Natural Gas boiler, worked
Post-Flood, New Burnham series 2, Natural Gas boiler, worked fine x first 10 days then error code 63 (max recycling limit-soft lockout?) preceeded by error 4 (flame current too low?), All lines purged… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
7,791 satisfied customers
I have a Ruud silouhette II plus 2 furnace. I am getting the
I have a Ruud silouhette II plus 2 furnace. I am getting the single blinking light signal, soft lockout, 1 hour lockout. As the unit is running, I also get a blinking XXXXX XXXXXght next to the two gr… read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
Let me try this again, my computer shut down on me. I have
Let me try this again, my computer shut down on me. I have an ArcoAire furnance and after a while of me powering it down it blows cold air. The unit seems to start up fine but before the blower kicks … read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
my lennox whisper quiet gas furn will not ignite. the damper
my lennox whisper quiet gas furn will not ignite. the damper opens,green lite on,igniter fires for 2 min then quits. the green lite slowly flashes after the igniter quits. the unit is about 10yr old. … read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 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