HVAC

Have HVAC Questions? Ask an HVAC Expert for Answers

Ask an Expert,
Get an Answer ASAP!

HVAC
This answer was rated:

Rheem furnace ignitor won't light up.

The igniter on my Rheem...

The igniter on my Rheem furnace won't light up. I replaced the igniter and the air filter but no luck. Are there any troubleshooting tips? My HVAC guy can't get out til next week.

Already Tried:
replacing air filter (which was filthy) and the igniter, which did not look to be shorted out.

Show More
Show Less
Ask Your Own HVAC Question
Answered in 2 minutes by:
10/27/2009
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22,888
Experience: Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
Verified
Hello, there is very good chance the limit is tripped. Do you have flashing light on the circuit board?
Ask Your Own HVAC Question
Customer reply replied 8 years ago
I did not see one but I can check again. Open the lower door and look at the red light on the upper right side?
look for a viewing window first, sometimes taking off the door clears the fault. I am looking up you manual right now . Would you like a parts manual to see where the various parts are?
Ask Your Own HVAC Question
Customer reply replied 8 years ago
Too late. I opened the panel. When I put the panel back on and turned it on again I see a little green steady light through the hole on the left side.
Ok no turn to heat function and tell me what the sequence is before it faults
Ask Your Own HVAC Question
Customer reply replied 8 years ago
blower starts, then click, long wait, click, another blower, and then nothing. Igniter does not get red/hot.
Ok behind the gas valve against the front firewall do you see a 2"x4" rectangle with 2 wires attached to it?
Ask Your Own HVAC Question
Customer reply replied 8 years ago
not sure. please be more specific
Ok, in the top section of the furnace, above the exhaust motor mounted flush to the front wall just a couple inches from the top of the furnace. I am downloading the parts diagram so you can see what I am taliking about.
Ask Your Own HVAC Question
Customer reply replied 8 years ago
Yes. There is a 1.5in square red circuit board type material with two wires. On red one going to the flame sensor

Ok, go to the link and click the rgdj parts , then next screen click download now. I had to download at a third party site.

Item number 15 is what we are looking for

http://www.mediafire.com/?sharekey=af58c874977f5efdb64026cfc061123638c4f8fa9308cb2ba9a26c4ed87536eb

Ask Your Own HVAC Question
Customer reply replied 8 years ago
OK, got it. What next?
we want to remove the 2 wires from #15 and tape them together so they make contact, but do not touch the cabinet of the furnace. Then we want to try to start again.
Ask Your Own HVAC Question
Customer reply replied 8 years ago
sorry> same thing. no ignition
ok put that one back and now the other limit. Dont worry we will get through quick now
Ask Your Own HVAC Question
Customer reply replied 8 years ago
done
thinkin ahead now huh?.....same thing with that limit?
Ask Your Own HVAC Question
Customer reply replied 8 years ago
they were the quick connect kind
ok end result is we havent started yet right?
Ask Your Own HVAC Question
Customer reply replied 8 years ago
We know what the problem isn't, sort of:)

Ok before we check pressure switch, reset furnace and set your hand on the gas valve I have a feeling we might be still having an ignition issue....

tell me if this happens ....

draft exhaust fan starts

after a while the gas valve clicks

and then the main blower kicks on.

Ask Your Own HVAC Question
Customer reply replied 8 years ago
there were two clicks on the gas valve before the main blower turned on. then long delay then shut off
Great....do you happen to have a propane torch?
Ask Your Own HVAC Question
Customer reply replied 8 years ago
yes
We want to mimic the hot surface ignitor ....once the exhaust fan starts hold the flame close to the ignitor, and when the gas valve opens and burner lights we will see if it gets past the 3 second trial. If this works it eliminates all limits, rollouts, pressure switch.
Ask Your Own HVAC Question
Customer reply replied 8 years ago
FIRE IN THE HOLE!!! What now? It's running.

Ok that just cleared everything as far as safetys.....now the only question is

is the ignitor getting 120v but is not glowing?

or is the circuit board not sending 120v. If you have a meter you can unplug the ignitor and see if t gets 120v during start up before the gas valve clicks. The good news is your close now. That is how I used to light furnaces when there was not an ignitor available.

Ask Your Own HVAC Question
Customer reply replied 8 years ago
OK. I will take it from here. Thanks for your patience. Since it is a new igniter, any adeas what would keep it from getting power? Is there a fuse or equivelant?

Npe, it either gets 120 and works..

gets 120 and doesnt work

or doesnt get 120v........I wish you luck

BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22,888
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
Ask BillyHvac Your Own Question
BillyHvac
BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22,888
22,888 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
I changed the ignite on my heil NDGK. It's still not
I changed the ignite on my heil NDGK. It's still not heating … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I have a lennox zoned heat pump and it is not heating down
I have a lennox zoned heat pump and it is not heating down stairs. … read more
HvacmanSean
HvacmanSean
Owner
HVAC
229 satisfied customers
I have a new Beckett Genisys 7505 oil furnace that stopped
I have a new Beckett Genisys 7505 oil furnace that stopped working last night. I completely filled the oil tank and have reset the furnace a few times, but when I try to turn on the heat I get cold ai… read more
BillyHvac
BillyHvac
Journeyman HVAC Tech
22,888 satisfied customers
Aprilaire 700. Water is getting to the switch at the bottom
Aprilaire 700. Water is getting to the switch at the bottom of the unit but not proceeding up into the unit to the filter element. … read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
6,938 satisfied customers
We have a new HVAC gas pack. It is a Daikin DP16GM3008041,
We have a new HVAC gas pack. It is a Daikin DP16GM3008041, 2.5T PKG Gas, 16 SEER. The filter I am using is a Honeywell Elite Allergen 10 FPR. It makes a whistling sound when the unit runs and seems re… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
6,938 satisfied customers
I am showing the e24 on my thermostat and our temp here is
I am showing the e24 on my thermostat and our temp here is going to be in single digits later tonight. I am a widow and have not idea about taking off panels on the furnace. Help … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
Used stove one day and it will not light tonight. HELP. 5
Used stove one day and it will not light tonight. HELP … read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
I have a rheem manufacturing company model # rkma-a060jl10e
I have a rheem manufacturing company model # rkma-a060jl10e it does not want to work. We found that the gas had been turned off to it so I turned it back on. Is there a pilot light or something that n… read more
HVAC Guru
HVAC Guru
Service Technician
Associate Degree
682 satisfied customers
I have XV95 and I just got a new Ecobee3. It says it's
I have XV95 and I just got a new Ecobee3. It says it's heating but I am fairly sure that only the fan is running … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I have water leaking from the furnace. Actually quite a bit!
I have water leaking from the furnace. Actually quite a bit! … read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I turned on my built in fireplace for the first time
i turned on my built in fireplace for the first time yesterday. I came on for 1 minute and turn back off. I could here a click every time it would turn on and off. I was leaving the house after it tur… read more
Phil
Phil
Mechanical Engineer
Degree, Mech Engr Technology
6,938 satisfied customers
I have a lennox heat pump with12.5 eer i bought about 25
i have a lennox heat pump with12.5 eer i bought about 25 years ago. i live in south Texas and use heat every other year. the AC works good, last month it was cold. i turned on heat pump, worked overni… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
How do you change the thermal high limit swtiches on a
How do you change the thermal high limit swtiches on a PTH123E35Axxab PTAC. Looks very difficult. … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
My signature stat thermostat is stuck, I can't raise the
My signature stat thermostat is stuck , I can't raise the temperature. Also it is showing a current temp much higher than it is. … read more
gotoman for ac
gotoman for ac
HVAC Service manager and owner
Associate Degree
4,135 satisfied customers
I have an Aprilaire steam humidifier Model 800. It is two
I have an Aprilaire steam humidifier Model 800. It is two years old and apparently has not been serviced at all. Recent cold weather drove the humidity down to the point where we had to call a technic… read more
Gaztech
Gaztech
Technician
Vocational, Technical or Trade School
1,142 satisfied customers
We have a 10 year old Goodman cple 48 hvac heat pump Ac
we have a 10 year old Goodman cple 48 hvac heat pump Ac unit, breaking the tripper. My hubby wants me to find a NEW unit to replace entire system we are very very unhappy with this goodman kept capici… read more
Airheatman
Airheatman
Heating & Air Conditioning Contractor
6 years college
1,836 satisfied customers
I have a keeprite furnace that has a constant yellow light
I have a keeprite furnace that has a constant yellow light flashing on the panel cover. I'm not sure if this is normal or there is an issue? … read more
Rick the plumber
Rick the plumber
Owner
9,857 satisfied customers
Rheem gas furnace RGRA10EZAJS that purges air then blows
Rheem gas furnace RGRA10EZAJS that purges air then blows cold air for a minute, stops, purges again, then flames and blows hot. Or sometimes after first purge does hiccup purges again then flames. Rep… read more
Daniel Plourde
Daniel Plourde
plumbing, hvac technichian
Vocational, Technical or Trade School
384 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