HVAC

Have HVAC Questions? Ask an HVAC Expert for Answers

Ask an Expert,
Get an Answer ASAP!

HVAC

I have a trane xe 90 that won't light. The ignitor comes on.

Customer Question
I have a trane...

I have a trane xe 90 that won't light. The ignitor comes on. the inducer fan comes on the gas valve clicks then it shuts off. it cycles three times then just the blower runs

Contractor's Assistant: I'll do all I can to help. How long have you been dealing with this?

1 day

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

Yes

Submitted: 2 months ago.Category: HVAC
Show More
Show Less
Ask Your Own HVAC Question
Answered in 1 minute by:
12/19/2017
HVAC Technician: Rick, HVAC Supervisor replied 2 months ago
Rick
Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 23,320
Experience: 40+ yrs. experience as a licensed oil & gas technician.
Verified

Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. If my initial response doesn’t answer your question then let me know and we can continue our conversation.

You need to test for 24 volts AC at the gas valve while the igniter is on.

Ask Your Own HVAC Question
Customer reply replied 2 months ago
ok. Which wires should I test across?
HVAC Technician: Rick, HVAC Supervisor replied 2 months ago

The 2 leads on the gas valve

Ask Your Own HVAC Question
Customer reply replied 2 months ago
Let me see if I can find my meter
HVAC Technician: Rick, HVAC Supervisor replied 2 months ago

Ok

Ask Your Own HVAC Question
Customer reply replied 2 months ago
Checking now
HVAC Technician: Rick, HVAC Supervisor replied 2 months ago

ok

Ask Your Own HVAC Question
Customer reply replied 2 months ago
Ac or dc ?
HVAC Technician: Rick, HVAC Supervisor replied 2 months ago

AC

Ask Your Own HVAC Question
Customer reply replied 2 months ago
I got 26 as soon as it clicked
HVAC Technician: Rick, HVAC Supervisor replied 2 months ago

Then if you have 26 Vac at the gas valve, the igniter is initialized and no main burner ignition then you have a faulty gas control valve, assuming of course you have gas to the valve.

Ask Your Own HVAC Question
Customer reply replied 2 months ago
How can I test to make sure I have gas. There was a leak yesterday that the propane company fixed, but all other furnaces are working
HVAC Technician: Rick, HVAC Supervisor replied 2 months ago

If you have gas everywhere else and the shut off is open then you have gas but you may also have air in the line. The safest way to vent the air is to cycle the furnace off then back on as many time as it takes to vent the air out. Or you can shut off the gas at the unit, break the piping connection, then turn the shut off back on until you smell gas (no open flames in the area of course) then shut it back off immediately. Then put the piping back together and try again. Be sure to test your re-connection for leaks

Ask Your Own HVAC Question
HVAC Technician: Rick, HVAC Supervisor replied 2 months ago

of course if the gas valve is bad this won't work

Ask Your Own HVAC Question
Customer reply replied 2 months ago
How many times cycling it on and off does it normally take. Yesterday the igniter was not working and the diagnostics light read that there was an igniter problem. I replaced it and it fired the first time last night and worked then this moning I had the new problem. Are these related problems
HVAC Technician: Rick, HVAC Supervisor replied 2 months ago

No way to predict. It takes as long as it takes. If it fired after the gas was hut of then air in the line is unlikely particularly if you've cycled it a few times already

Ask Your Own HVAC Question
Customer reply replied 2 months ago
How difficult is replacing the gas valve
HVAC Technician: Rick, HVAC Supervisor replied 2 months ago

Pretty easy of you're OK with taking the gas piping apart. If not leave this to a pro.

Ask Your Own HVAC Question
Ask Rick Your Own Question
Rick
Rick
Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 23,320
23,320 Satisfied Customers
Experience: 40+ yrs. experience as a licensed oil & gas technician.

Rick 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 a cg5 boiler for my home. The boiler ignites and runs
I have a cg5 boiler for my home. The boiler ignites and runs for 10 seconds or so, turns off for 1 or 2 seconds and then reignites, that happens over and over again for 30 minutes or so and then shuts… read more
Rick
Rick
HVAC Supervisor
23,320 satisfied customers
I have a Mr Heater big maxx converted over to Propane and
I have a Mr Heater big maxx converted over to Propane and ran out of gas with it the other day, I now have the tank refilled and the person who filled the tank ran a leak test and found nothing.No The… read more
Regan Land
Regan Land
General Manager
Vocational, Technical or Trade Scho
508 satisfied customers
My furnace (Carrier) is not coming on. There is power going
My furnace (Carrier) is not coming on. There is power going to the furnace but yet it won't come on. The panel attached to the furnace (Honeywell) indicates a red light for both heat and zone 3. I hav… read more
Bill
Bill
Service Mgr
7 satisfied customers
We have an air handler that moves 27000 cfm with inlet vanes
we have an air handler that moves 27000 cfm with inlet vanes controlled by static. all of a sudden we lose cfm and inlet vanes go to 100% and cfm drops to 20,000 some times less. If we close inlet van… read more
Bill
Bill
Service Mgr
7 satisfied customers
I have a rheem rrna model as and gas assisted heat unit. It
Hi I have a rheem rrna model as and gas assisted heat unit. It keeps shutting off after a few minutes … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
Nursing home 10 p-tac it has a trance board no model number
nursing home 10 p-tac it has a trance board no model number how can i find them … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
My weil mclain HE boiler does not fire all the time. Blower
my weil mclain HE boiler does not fire all the time. Blower comes on ignitor glowes and sometimes it lights and sometimes it does not … read more
Rick
Rick
HVAC Supervisor
23,320 satisfied customers
My boiler (forced hot water heating system) has been running
My boiler (forced hot water heating system) has been running when no zones have been calling for heat. Why?… read more
Rick
Rick
HVAC Supervisor
23,320 satisfied customers
Why my heater can't hold the temperature of 130 degrees it
Hi why my heater can't hold the temperature of 130 degrees it was working fine … read more
Rick
Rick
HVAC Supervisor
23,320 satisfied customers
I have a Mendoza seabrook d40 and small explosion in fire
Second opinion] I have a Mendoza seabrook d40 and small explosion in fire box when turns on remote blows out pilot … read more
Bill
Bill
Service Mgr
7 satisfied customers
My thermostat has stopped worked and calls for replacement
My thermostat has stopped worked and calls for replacement of CR2032. I've found it but can't release the plastic to get into it. … read more
Bill
Bill
Service Mgr
7 satisfied customers
My amana refrig threw a breaker switch, but has gone back on
My amana refrig threw a breaker switch, but has gone back on and worked fine since I threw the breaker switch back. It is 13 yrs old. … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
My ptac unit started this morning not responding to button
my ptac unit started this morning not responding to button changers, its stuck in heat mode, I can't even adjust the temp. I tried unplugging the unit to see if it would reset, it didn't change anythi… read more
Bill
Bill
Service Mgr
7 satisfied customers
I changed the batteries in my thermostat but now the furnace
I changed the batteries in my thermostat but now the furnace won't turn on even though I hear the click. … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
My distinctions furnace shuts off every time I turn on
My Amanda distinctions furnace shuts off every time I turn on humidifier thermostat. No error code. When I turn humidifier off , furnace will restart on its own. Recently changed solenoid on humidifie… read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,142 satisfied customers
I have a Rheem RHLL-HM6024JA air handler. My question is if
I have a Rheem RHLL-HM6024JA air handler. My question is if this unit can be used with a Rheem heat pump condenser? … read more
Billy
Billy
Journeyman Service Technician
State Licensed Mechanical Contractor
9,330 satisfied customers
Coms on by itself and code displayed is F1? Just stated and
I have two machined sitting on top of each other and both are doing the same thing.… read more
Bill
Bill
Service Mgr
7 satisfied customers
I need a replacement circuitry board for my electric
I need a replacement circuitry board for my electric fireplace … read more
Bill
Bill
Service Mgr
7 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