HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

Related HVAC Questions
My furnace will not fire but my pilot works correctly
Hi, I have a home gas furnace that uses a Honeywell gas valve vr8304m4507 (new) and controller s8600f (original and one from Amazon). My furnace will not fire but my pilot works correctly. Sometimes i… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,887 satisfied customers
I have a rheem RRGG - 10e31jkr & the gas pack will not ignite
I have a rheem RRGG - 10e31jkr & the gas pack will not ignite the burners. Blower above unit comes on and I hear a spark but cycles start Sequence but no ignition.… read more
Theplumber717
Theplumber717
Plumber
Vocational, Technical or Trade Scho
1,264 satisfied customers
My furnace's lighting sequence sometimes stops after the blower and inductor are both
My furnace's lighting sequence sometimes stops after the blower and inductor are both on and the glow lighter has lit the pilot. Apparently something is supposed to sense the pilot flame and open the … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,887 satisfied customers
Billy. Troubleshooting my Armstrong furnace with a VR8204H1097
Billy. Troubleshooting my Armstrong furnace with a VR8204H1097 valve. Pilot on, inducer on and 24v at the inducer. No main burner on. Have 24v at the PV and the MV leads to the valve. No voltage on th… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
13,887 satisfied customers
just put on a honeywell S8610U I believe all the connections
just put on a honeywell S8610U I believe all the connections are correct. Problem is when the spark ignites the pilot gas it is ok. Then it calls for the main gas valve to open. Immediately the pilot … read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
I have a Carrier Carrier Weathermaker SXA080. The thermostat
I have a Carrier Carrier Weathermaker SXA080. The thermostat calls for heat. The burner fan comes on, about 10 seconds later the pilot comes on. It used to take at least a minute, sometimes more befor… read more
Heath.M
Heath.M
Refrigeration Mechanic
Vocational, Technical or Trade School
223 satisfied customers
I have a Winchester Hamilton Home Products propane furnace
I have a Winchester Hamilton Home Products propane furnace with a white rodgers 50a50 controller. The ceramic heating element heats, the pilot burner lights but the other burners never light and the p… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
Have a Rheem gas furnace with electric ingnitor, the pilot
Have a Rheem gas furnace with electric ingnitor, the pilot lights but it won't ignite the furnace.… read more
Appliance Guru
Appliance Guru
18,666 satisfied customers
I asked a question about my Airquest 75,000 btu condensing
I asked a question about my Airquest 75,000 btu condensing furnace failing to continue to keep main burners on and shutting down after about 4-5 seconds. I was told it must be the electronic control m… read more
Scott
Scott
Self Employed HVAC Service Technician
Associate Degree
400 satisfied customers
Hey I have a gas furnace thats not lighting the main burners.
Hey I have a gas furnace thats not lighting the main burners. Its an intermittent system. I have a lit flame. Whats my problem?… read more
hvacdave84
hvacdave84
99 satisfied customers
I have a Carrier furnace (395BAW048080AABA). The draft inducer
I have a Carrier furnace (395BAW048080AABA). The draft inducer fan will come on (I replaced the cage wheel which had desinigrated from rust), then the ignitor will spark and the pilot will light. The … read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
I have a AIRQUEST natural gas furnace that is about 20 years
I have a AIRQUEST natural gas furnace that is about 20 years old model #NNCU075AG01. The blower would come on when the thermostat called for heat but only cold air came out. When I turned the thermost… read more
MRANSWER
MRANSWER
TECHNICIAN
Bachelor's Degree
6,158 satisfied customers
Have a Carrier 58sx Replaced Circut board hh84aa021. It burned
Have a Carrier 58sx Replaced Circut board hh84aa021. It burned out. Now Inducer moter runs pilot lights and after about 60-90 seconds the blower motor comes on. However the burners never light.… read more
airheatman
airheatman
HVAC Technician
6 years college
9,703 satisfied customers
I have a tempstar natural gas furnace model nug5075bfb1 with
I have a tempstar natural gas furnace model nug5075bfb1 with a S8600M ignition module that is giving me trouble. The furnace operates correctly most of the time but occasionally requires multiple trie… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,362 satisfied customers
I have a Tempstar furnace #NUGK075DG03 867.769422. The main
I have a Tempstar furnace #NUGK075DG03 NNN-NN-NNNN The main burner will not light. the blower works, the ignition blower works, the pilot lights. What's broke?… read more
Douglas
Douglas
Vocational, Technical or Trade Scho
3,087 satisfied customers
HVAC - I have a Lennox furnace that will not ignite the burners
HVAC - I have a Lennox furnace that will not ignite the burners even though the pilot light is lit and working fine. In December I had problems with the burners cycling on and off. I replaced the flam… read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
768 satisfied customers
The main burner on my Airco 8300 Turbo gas furnace will not
The main burner on my Airco 8300 Turbo gas furnace will not stay lit. When the furnace starts the little fan in the chimney runs, the pilot light ignites and then the main burner fires after 3-5 secon… read more
G Wurtz
G Wurtz
Instructor of HVACR Program
Master's Degree
57 satisfied customers
I have a Lennox Conservator III G16Q4-75-3 that will not start.
I have a Lennox Conservator III G16Q4-75-3 that will not start. I checked the ignitor and the sensor and cleaned them both. When I turn the power on the fan comes on, then the gas valve opens but ther… read more
Roger (Mr. Fixit)
Roger (Mr. Fixit)
Service and Sales Manager
Bachelor's Degree
16 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