HVAC

Have HVAC questions? Ask an HVAC Expert for answers

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

I am trying to troubleshoot my Trane XR80 furnace code shows…

I am trying to...

I am trying to troubleshoot my Trane XR80 furnace code shows fast normal call heat but it still just kicks on then off, repeatedly. I have read to try and clean the sensor but cant figure out where that is

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

Changed the filter yesterday, changed the battery in the thermostat just in case-same thing

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

I have a tune up scheduled for wednesday! This just happened last night and this morning-so I am trying to fix it how do I figure out where the sensor is?

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

Any other suggestions to try

Show More
Show Less
Ask Your Own HVAC Question
Answered in 1 minute by:
3/10/2018
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 23,002
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified

Hello,

do you actually get flame for 3 seconds before kicking off?

also please disregard phone offers as that option is not currently available

Ask Your Own HVAC Question
Customer reply replied 1 month ago
i did see the flame but didnt time it-seems like that is about right-it tried three times to lick on then shut off and now its not even trying the cold air return is blowing out semi cold air
Customer reply replied 1 month ago
I can not afford to pay for a call, couldn't even afford the $5 but I am freezing-can you help me?
Customer reply replied 1 month ago
hello?

Can you tell me if you see a glow in the flame box at all during start up

Ask Your Own HVAC Question
Customer reply replied 1 month ago
not anymore-it was there when it first kicked on but the only light now is the fast blinking red one thru the peep hole

Take a pic of your furnace with top door off and I will circle where the flame sensor is

Ask Your Own HVAC Question
Customer reply replied 1 month ago
I sent pics. Can you tell me why would the cold air be coming out of return if I had thermostat shut off-does the fan still work when thermostat is off?

if furnace is fail mode the blower runs nonstop. Have you shut off power to the furnace and back on yet?

You can actually post the picture here in this chat

Ask Your Own HVAC Question
Customer reply replied 1 month ago
I did shut off power-I sent the pic in reply to the txt I got-hang on and I will try and download them to this laptop

Standing by

Ask Your Own HVAC Question
Customer reply replied 1 month ago
pics attached
20180310_105203.jpg2018031...jpg20180310_105210.jpg2018031...jpg20180310_105217.jpg2018031...jpg20180310_105228.jpg2018031...jpg

see here for flame sensor location

Ask Your Own HVAC Question
Customer reply replied 1 month ago
Ok I see what you are talking about-what do I do with it?

you clean the metal rod part in front of the burner with steel wool or sandpaper.

Ask Your Own HVAC Question

can you start furnace and tell me if there is ever a glow on the rightside of burner?

Ask Your Own HVAC Question
Customer reply replied 1 month ago
Do I disconnect the sensor or leave it plugged in while I use the steel wool? Do I need to put the doors back on to start it to check glow-is the burner on top or bottom (yes I am that dumb!)

If you can reach the rod with your fingers just leave in place. If you cannot then you would take out the one screw holding it in...wire can be attached or not....slide out and clean with steel wool. Reinstall.

To try furnace to start, bottom door must be on, top door can be off, turn power on and thermostat to heat and up

Ask Your Own HVAC Question
Customer reply replied 1 month ago
Oh the burner is attached to sensor...ok I could reach it but want to make sure I am understanding it-I literally just took a steel wool pad and rubbed it around the part between the white and orange part in pic-or am I going behind that where I can not see and cleaning that longer thing?
Customer reply replied 1 month ago
ok-i realized the rod was behind that and felt the rod-cleaned it (I think), an dnow should I turn it all back on?

ok now turn all back on...tell me what happens

Ask Your Own HVAC Question
Customer reply replied 1 month ago
orange glow on far right, flame on all three burners(scared me half to death!), still feels like cold air coming out of cold air return not warm, warmer air coming out of vent and furnace is still running!!!
Customer reply replied 1 month ago
in order for me to put top lid back on I have to remove bottom one which will shut furnace off-I noticed that the top of the senor is not actually IN the flame but a bit above it-just the tip of it-is that normal or did I moved it some how?

The sensor is normally about 1/3 in the flame ( the rod portion).

Shut everything down.

Put doors back on

turn power back on and tell me if the unit fires up again

Ask Your Own HVAC Question
Customer reply replied 1 month ago
Oh my gosh, I am so amazed!!! I did it!!! Well, you did it-but still I am a grandmother and never fixed a thing on my own-thank you so much for your patience and help-I am already warm again!!! God Bless you!!!!
Customer reply replied 1 month ago
I am thinking I should cancel my tune up (they only come look at it and tell you whats wrong).

well done!

You have fixed your furnace!

Just rate my service with the star system at top of page to close and have a great/warm weekend

Thank you

Billy

BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 23,002
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified
BillyHvac and 87 other HVAC Specialists are ready to help you
Ask your own question now
Customer reply replied 1 month ago
Thank you-you too!!!
Was this answer helpful?
Ask BillyHvac Your Own Question
BillyHvac
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 23,002
23,002 Satisfied Customers
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics

BillyHvac 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
My Armstrong Furnance shut down last Dec. the service man
My Armstrong Furnance shut down last Dec. the service man came and after a long serch told me all was now well within an hour I had to call back he then said I should turn off the humidfier it ran ok … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,702 satisfied customers
Why does my unit hiss? I've cleaned the blades and it's even
Why does my unit hiss? I've cleaned the blades and it's even louder now … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,702 satisfied customers
My water heater is not heating. It is an AO Model GPVH. The
My water heater is not heating. It is an AO Smith Model GPVH. The Intelli-Vent controller shows a green light next to Warm (far left) and yellow light on C (far right). … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
We are trying to heat our spa and the message SW OPEN keeps
We are trying to heat our spa and the message SW OPEN keeps coming up. what does this mean? … read more
David Bowden
David Bowden
Owner
768 satisfied customers
My furnace stopped blowing warm air in the middle of the
my furnace stopped blowing warm air in the middle of the night. When we got up to try and figure out what was going on we noticed it would start and then stop and then start and then stop again. We le… read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,702 satisfied customers
I have a A A unit M/N A93UH1D707B12A-03 She will start the
I have a A A unit M/N A93UH1D707B12A-03 She will start the combustion air providing motor and sometimes the igniter will glow and sometmes not. If it ignites which it is not at all now It give's the t… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
23,002 satisfied customers
Thank you. My ac blower doesn't stop this is been going on
my ac blower doesn't stop this is been going on for a week … read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
953 satisfied customers
Compressor works, blower fan works, compressor fan does not
Compressor works, blower fan works, compressor fan does not work but motor turns freely. Model fk4cnf002 … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,702 satisfied customers
My Mom calls when anything electrical happens. Her HVAC will
My Mom calls when anything electrical happens. Her HVAC will not cool I have had the same situation in my place How do you reset the system? … read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
23,002 satisfied customers
Phil I have installed a Honeywell. Wi-fi vision pro.
Hi Phil I have installed a Honeywell. Wi-fi vision pro. Th8321wf10001 and I can't find the dehumification away mode on the menu !! Thanks… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
6,938 satisfied customers
I have a thermostat in my condo for air/c and heat. The LED
I have a White Rogers thermostat in my condo for air/c and heat. The LED quit working, the thermostat seems to be not working. There are no identifying numbers on this thermostat. … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
My thermostat is a Honeywell TH6220U2000. My a/c is fine it
My thermostat is a Honeywell TH6220U2000. My a/c is fine it seems. But in heat mode I have pretty cool air running up to an hour or more. I cannot not access setup option 370, Heat Cycle Rate, but 365… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
Where would i scource a power board invensys 3607. It is out
where would i scource a power board invensys 3607 JA: I'll do all I can to help. How long have you been dealing with this? Customer: it is out of a thetford toilet in a caravan JA: Do you plan on doin… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
6,938 satisfied customers
My landlord told me to try changing the battery on my
my landlord told me to try changing the battery on my Honeywell Wi-Fi Focus Pro 6000. When I took of the cover, the circuit board came out too and a small green piece with two metal prongs fell out. I… read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,702 satisfied customers
Evaporator coil has a leak. Its a Lennox coil part number
question is Lennox coils have had issues with Leaks coil is about 6 years old i was wondering if another brand coil… read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
I'm looking at airconditioning units for a small house. Some
I'm looking at airconditioning units for a small house. Some are 115v and a few are 120/240v. What's the difference between the 2? Will the 115 volt run on typical home electrical? and What about the … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
6,938 satisfied customers
I'm trying to determine is my G26Q3/4-100-3 came with a
I'm trying to determine is my G26Q3/4-100-3 came with a 1/3hp motor or 1/2hp. … read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,702 satisfied customers
Is it better to have a short 15ft AC lineset with the ac
Is it better to have a short 15ft AC lineset with the ac condenser on the east of my shop close to the furnace or install the condenser with more shade on the North side of the shop with a 45ft linese… read more
Brian HVAC Guy
Brian HVAC Guy
HVAC Technician
High School
953 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