HVAC

Have HVAC Questions? Ask an HVAC Expert for Answers

Ask an Expert,
Get an Answer ASAP!

HVAC

AMERICAN STANDARD FURNACE FREEDOM 80 SOMETIMES IT LITES AND…

Customer Question
AMERICAN STANDARD FURNACE FREEDOM...

AMERICAN STANDARD FURNACE FREEDOM 80 SOMETIMES IT LITES AND OTHER TIMES IT DOESNT AND THE FAN KEEPS BLOWING COLD AIR I SHUT IT OFF AND RESET IT THE IGNITER GLOWS AND THE GAS VLVE CLICKS BUT NO FIRE UNTIL I BLOW A LITTLE AIR IN THE GAS TUBE THEN IT LIGHTS

Contractor's Assistant: Did you double-check the thermostat's settings? And what about the filters?

SET AT 70 WITH NEW BATTERIES AND NEW FILTER

Contractor's Assistant: Do you plan on doing the work yourself?

GOING TO GIVE IT A TRY IM A MECHANIC BY TRADE

Contractor's Assistant: Anything else we should know to help you best?

ITS BEEN CLEANED

Submitted: 1 month ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 3 minutes by:
1/17/2018
HVAC Technician: airheatman, HVAC Technician replied 1 month ago
airheatman
airheatman, HVAC Technician
Category: HVAC
Satisfied Customers: 8,920
Experience: Furnace, A/C and heat pump specialist.
Verified

If you are having to blow the gas to the igniter the burner tubes could have rust or debris or else you have a gas pressure issue.Did you remove the burners and clean them with a wire brush, concentrating on the feeder tubes?

https://i.imgur.com/IaqEu0T.png

Ask Your Own HVAC Question
Customer reply replied 1 month ago
they have been cleaned also replaced the flame sensor that was locatedbetween the 2nd and 3rd feeder tube it will not fire when i put the front cover back on
Customer reply replied 1 month ago
sometimes it will lite on its own other times it will go a couple of cycles and not lite but the fan kicks on and blows cold air
HVAC Technician: airheatman, HVAC Technician replied 1 month ago

OK there is no other component in the circuit between igniter glowing and valve opening.If you had an open limit or pressure switch issue the ignitor would not light .As for the flame sensor it does not come into play until AFTER the burners light. Next step is to verify gas pressure in and out of valve. If you do not have a manometer or gas pressure tester , and other gas appliances work properly the gas valve is probably the culprit.Sounds like at times the diaphram in valve is not opening all the way.

Ask Your Own HVAC Question
Customer reply replied 1 month ago
a hot water tank is on the same gas line and its working fine
Customer reply replied 1 month ago
this is one of those 2 stage furnaces when it lites it is a low flame and after it warms up it sounds like a jet engine
Customer reply replied 1 month ago
when the furnace is working i can pull one of the wires off of the limit switch and it keeps running
HVAC Technician: airheatman, HVAC Technician replied 1 month ago

You have more than one issue then. May be a failing board. Do you have a meter to see if we are getting 24v to the valve?

Ask Your Own HVAC Question
HVAC Technician: airheatman, HVAC Technician replied 1 month ago

Have you already verified this?

Ask Your Own HVAC Question
Customer reply replied 1 month ago
just checked again 24v
HVAC Technician: airheatman, HVAC Technician replied 1 month ago

Does the 24v stay constant when burners should be lighting?

Ask Your Own HVAC Question
Was this answer helpful?
Ask Phil Your Own Question
Phil
Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6,938
6,938 Satisfied Customers
Experience: Retired HVAC/ Electrical & Boiler contractor. Industrial

Phil is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

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

6,938 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

Kenton Guidry

Kenton Guidry

HVAC Technician

963 satisfied customers

12 years install/service experience.

Brian HVAC Guy

Brian HVAC Guy

HVAC Technician

953 satisfied customers

I have been an HVAC/R mechanic/technician for 30+ years.

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 >

Related HVAC Questions
I have American Standard furnace model # auc1d120a9601ae.
Hi, I have American Standard furnace model # auc1d120a9601ae. The furnace is not operating and I don't know why. I don't know much about furnaces, but I'll tell you what I have observed. The thermosta… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
AMERICAN STANDARD FURNACE FREEDOM 80 SOMETIMES IT LITES AND
AMERICAN STANDARD FURNACE FREEDOM 80 SOMETIMES IT LITES AND OTHER TIMES IT DOESNT AND THE FAN KEEPS BLOWING COLD AIR I SHUT IT OFF AND RESET IT THE IGNITER GLOWS AND THE GAS VLVE CLICKS BUT NO FIRE UN… read more
airheatman
airheatman
HVAC Technician
8,920 satisfied customers
I have several American Standard furnaces that are going out
I have several American Standard furnaces that are going out on code for and they will not start have changed the pressure switch have cleaned out the flu's and checked they weren't blocked then chang… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
I am looking for quick cost of 3 ton American Standard
I am looking for quick cost of 3 ton American Standard furnace … read more
airheatman
airheatman
HVAC Technician
8,920 satisfied customers
I have a 2016 american standard furnace put the summer of
i have a 2016 american standard furnace put the summer of 2016 it wont light the glow stick and motor work but wont light red light flashes all the time on board… read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
American standard furnace with steady blinking light,
American standard furnace with steady blinking light, temperature showing 2 degrees lower then thermostat set, thermostat comments reads waiting for equipment. Took several minutes forbheatbto come on… read more
Phil
Phil
Mechanical Engineer
6,938 satisfied customers
I bought a nest e Thermostat today and have trouble
I bought a nest e Thermostat today and have trouble installing it due to not knowing about if my system has heat pump and auxillary power... … read more
Daniel Plourde
Daniel Plourde
plumbing, hvac technichian
Vocational, Technical or Trade School
432 satisfied customers
The last couple days there has been a bleech like smell
The last couple days there has been a bleech like smell throughout our house. I think I can smell it around our furnace. What could this be? Our whole house stinks. Central air, LP furnace with electr… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
My American Standard furnace is faulting with the 3 blink
hello my American Standard furnace is faulting with the 3 blink code. I have replaced the pressure switch and have tried to run the unit without the intake tube. Still wont fire. I noticed that the fa… read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
My American standard furnace (freedoms 95 comfort R) Not
My American standard furnace (freedoms 95 comfort R) … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
Red light flashing, water flooding out from bottom of unit.
red light flashing, water flooding out from bottom of unit. … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
American Standard furnace/ AC unit will not turn on. It's as
American Standard furnace/ AC unit will not turn on … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
I have an American Standard furnace and air conditioner and
thanks. I have an American Standard furnace and air conditioner and it stopped working today. It looks like the 5V fuse was blown, so I replaced it and it blew out again instantly. What do you think t… read more
Charles Bodenheimer
Charles Bodenheimer
Owner
Associate Degree
78 satisfied customers
I have an old American standard furnace and want to replace
I have an old American standard furnace and want to replace blower motor. I have a new century multi horsepower motor. Not sure how to wire it up … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
Sorry had to reboot my computer, had a problem with my
had a problem with my furnace few days ago. i am in chicago and we had a really cold weather... i have american standard furnace and outdoor ac unit... i use nest thermostat.. few nights ago it started short cycling and fried control board on the furnace. hvac tech cameout and replaced the board and disconnected wires running to ac unit outside.. … read more
airheatman
airheatman
HVAC Technician
8,920 satisfied customers
American standard furnace is giving me a code 2? No filter
american standard furnace is giving me a code 2 ? JA: Did you check the furnace's filters? Customer: yes no filter in it right now JA: Do you plan on doing the work yourself? Customer: yes JA: Anythin… read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,142 satisfied customers
I have an American Standard furnace, getting the thermal
I have an American Standard furnace, getting the thermal protection device open alam. Where do I find it and how do I reset it? Furnace is Model # ADD100C945C4 … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,142 satisfied customers
American Standard furnace. No tripped circuits. Outside unit
American Standard furnace. No tripped circuits. Outside unit clear of debris. Batteries replaced in thermostat. Unit set at COOL, AUTO (outsode doesnt run)...COOL, fan, all systmes ago but nonflow. Th… read more
HvacmanSean
HvacmanSean
Owner
HVAC
232 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.

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