HVAC

Have HVAC questions? Ask an HVAC Expert for answers

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

Related HVAC Questions
I have a 620Q3E-75-2 lennox whisper heat When the thermostat
Second opinion] I have a 620Q3E-75-2 lennox whisper heat When the thermostat calls for heat I can hear the ignitor and I can see the pilot light on but the burners do not come on after a minute or two… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,501 satisfied customers
I have a 75000 BTU whisper heat lennox furnace. My problem
I have a 75000 BTU whisper heat lennox furnace. My problem is the pilot light remains lite after the furnace reaches the thermostat temperature. When the temperature requires more heat the furnace fai… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,501 satisfied customers
See your discussion below on your websit - I have the exact
See your discussion below on your websit - I have the exact same problem - The igniter lights the burners - they go for about 8 seconds then on again over and over - then the Limiter opens - turns off… read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,501 satisfied customers
I have a Lennox G20Q3E-75-2 gas furnace. The electronic
I have a Lennox G20Q3E-75-2 gas furnace. The electronic ignition module constantly flashes which i understand it means the problem is external from the module. If i reset the furnace, it will go throu… read more
Kcrand36
Kcrand36
Technician/Owner
Vocational, Technical or Trade School
72 satisfied customers
I have a Lennox whisper heat gas furnace model g20q3e-75-4
I have a Lennox whisper heat gas furnace model g20q3e-75-4 that comes on and heats up then shuts off. I pulled the blower and had it tested and it works good. The filter is clean and I shop vac,d the … read more
airheatman
airheatman
Heating & Air Conditioning Contractor
6 years college
8,501 satisfied customers
Is the Lennox g20 whisper heat suppose to bring the furnace
Is the Lennox g20 whisper heat suppose to bring the furnace on and off while the blower continues to blow?… read more
Appliance Guru
Appliance Guru
19,163 satisfied customers
hello my name is ***** ***** using Just Answer..... Problem:
hello my name is ***** ***** using Just Answer..... Problem: - THE MAIN BURNERS WILL NOT LIGHT - multi-meter only reads 12 to 13 Volts AC across MV and PV/MV - furnace is a Lennox Whisper Heat G2003/4… read more
Appliance Guru
Appliance Guru
19,163 satisfied customers
I have a Lennox HVAC unit, 12GCS series. The igniter attempts
I have a Lennox HVAC unit, 12GCS series. The igniter attempts to work-I hear it ticking- but must have a weak spark. If I manually light the burner, the unit runs as normal. However, the limit switch … read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
14,012 satisfied customers
Lennox Whisper Heat G20 series. I had replaced the ignition
Lennox Whisper Heat G20 series. I had replaced the ignition control board a couple of years ago. Yesterday, the furnace was not coming on although it was being commanded to heat by the thermostat. The… read more
MRANSWER
MRANSWER
TECHNICIAN
Bachelor's Degree
6,158 satisfied customers
Hi! Have a 1994 Lennox whisper heat. the thermostat calls for
Hi! Have a 1994 Lennox whisper heat. the thermostat calls for heat, the ignition clicks and lights the pilot, the blower comes on, but the burners do not kick in. Any ideas?… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
14,012 satisfied customers
I have a question regarding a Lennox WhisperHeat 2003/4-10
I have a question regarding a Lennox WhisperHeat 2003/4-100-1. We switched from a/c to heat..the unit ran for a few days blowing only cool air. I then realized that I had not re-lit the pilot light. I… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
This is a second attempt to reach you, Mr. gotoman.
This is a second attempt to reach you, Mr. gotoman. My first message sent via Seamonkey email and web browser. It spent 10 min. endlessly recycling and finally said I should re-enter the card info. So… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 satisfied customers
I have a Lennox Conservator III G16 and have been having a
I have a Lennox Conservator III G16 and have been having a problem off and on for the last 3 weeks. What happens is that the following happens (when it doesn't work): 1) Pilot arcs until lit 2) Fans c… read more
Tim H.
Tim H.
Lead building engineer
Vocational, Technical or Trade Scho
3,962 satisfied customers
My Lennox heating unit stopped to work. I replaced already
My Lennox heating unit stopped to work. I replaced already thermostat and pilot flame sensor, neither helped. Spark ignition and pilot works (constantly stays lit ), cold air fan and AC also work exce… read more
johnincolorado
johnincolorado
8 satisfied customers
I have a G20Q3E-75-4 that has never given me problems.This
I have a G20Q3E-75-4 that has never given me problems.This season it will not fire up.I have replaced the thermostat,gas valve and still no heat.When it was in working order last season I noticed more… read more
BillyHvac
BillyHvac
Journeyman Service Technician
State Licensed Mechanical Contractor
14,012 satisfied customers
Hello, I have an 18 yr old lennox whisper heat gas furnace.
Hello, I have an 18 yr old lennox whisper heat gas furnace. The burner comes on when the thermostat tell it to, but it does not turn the fan on. The safety switch turns the burner off after about 4 mi… read more
Matthew
Matthew
HVAC Technician
Bachelor's Degree
2,014 satisfied customers
Lennox G20 furnace not firing up after temperature falls
I have a Lennox Whisper Heat G20 furnace and had been having problems with it not firing up every time the thermostat went below the desired temperature. I'd have to turn the furnace off/on to get it … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
5,375 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

7,634 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