RV

Have RV questions? Ask an RV mechanic online.

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

This answer was rated:

Furnace won’t light. It went through a soft lockout. 2018…

Furnace won’t light Mechanic's...

Furnace won’t light

Mechanic's Assistant: Just to clarify, what are the exact lights you're talking about?

It went through a soft lockout

Mechanic's Assistant: What is the make/model/year of your RV?

2018 Jayco Jayflight

Mechanic's Assistant: Are you fixing your RV yourself? What have you tried so far?

I have just reset and tried to light again. Has gas and power.

Show More
Show Less
Ask Your Own RV Question
Answered in 2 minutes by:
9/21/2020
RV Mechanic: Brian, Certified RV Tech replied 2 years ago
Brian
Brian, Certified RV Tech
Category: RV
Satisfied Customers: 128
Experience: Expert
Verified

Hello, thank you for reaching out to JustAnswer.com. My name is ***** ***** I’d like to assist you with this. Please give me a moment to type up a response.

If you receive a message about a phone call, that is not me requesting it. The automated system from JustAnswer.com offers it as an extended service. If you would like to do a phone call, you are welcome to click it but please know it is an upcharge from JustAnswer.com.

Just to clarify, how many times did it try to light before it went into lockout?

Ask Your Own RV Question
Customer reply replied 2 years ago
I'm not sure. I think three
RV Mechanic: Brian, Certified RV Tech replied 2 years ago

Sounds like the system is doing its job properly then. Ok, give me a moment please as I'm about to type a few things. Could you please send me the make & model of the furnace?

Ask Your Own RV Question
Customer reply replied 2 years ago
I have 2018 Jayco JayflightAtwood furnace
RV Mechanic: Brian, Certified RV Tech replied 2 years ago

Thank you

Ask Your Own RV Question
Customer reply replied 2 years ago
Afmd35121 Atwood mobile products
RV Mechanic: Brian, Certified RV Tech replied 2 years ago

A few things that run right off the top of my head. If it is clicking that should mean that the sail switch is doing its job which is allowing the spark to happen. So it is either the fuel valve (unlikely) or the igniter & flame sense. The igniter might not be sparking where it is supposed to be (ceramic could be cracked), the flame sense is dirty and not sensing the flame, or the power is not going from the flame sense to the board and closing it down so that it isn't sending LP into the house. Do you have a multimeter that you can check on voltage and have you already downloaded the book for your furnace?

Ask Your Own RV Question
Customer reply replied 2 years ago
I don't and I haven't. The first time I tried to light it I heard the click click click but I had no luck I did not hear it after that one time ever again and I do not hear it now when I try
RV Mechanic: Brian, Certified RV Tech replied 2 years ago

Your system might be the one that does a 1 hour lock out. You "should" be able to bypass it if you shut all of the power down in the rig for a minute and then turn it back on. Does your thermostat give a display of error codes?

Ask Your Own RV Question
Customer reply replied 2 years ago
No. There is a led light that blinks once and then three seconds later blinks again
RV Mechanic: Brian, Certified RV Tech replied 2 years ago

How many total blinks? Just 1?

Ask Your Own RV Question
RV Mechanic: Brian, Certified RV Tech replied 2 years ago

I love those that give diagnostic flashes! Limit Switch/Airflow Problems is what we have. So either your limit switch is bad (its on the back) or the sail switch. I'd start with the limit switch.

Ask Your Own RV Question
Customer reply replied 2 years ago
that is a little over my head
RV Mechanic: Brian, Certified RV Tech replied 2 years ago

I cannot say if it is or isn't. As a mobile tech, that would likely be about 1.5-2.5 hours max job depending on your furnace and how angry it wanted to be. Have you looked for a mobile tech in your area?

Ask Your Own RV Question
Customer reply replied 2 years ago
No but I will try that tomorrow. Thanks for your help
RV Mechanic: Brian, Certified RV Tech replied 2 years ago

You're very welcome! Is there anything else I can assist you with this evening?

Ask Your Own RV Question
Customer reply replied 2 years ago
No. Thank you
RV Mechanic: Brian, Certified RV Tech replied 2 years ago

You're welcome! Thank you for using JustAnswer.com. Please feel free to utilize the system again should you have any question and someone will be with you as soon as possible. Have a good evening and happy travels! -Brian

Brian
Brian, Certified RV Tech
Category: RV
Satisfied Customers: 128
Experience: Expert
Verified
Brian and 87 other RV Specialists are ready to help you
Ask your own question now
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a rv mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Brian Your Own Question
Brian
Brian
Brian, Certified RV Tech
Category: RV
Satisfied Customers: 128
128 Satisfied Customers
Experience: Expert

Brian is online now

Related RV Questions
Furnace blower will run with no ignition then shuts down:
Furnace blower will run with no ignition then shuts down: … read more
Nachum Wagschal
Nachum Wagschal
3,168 satisfied customers
2020 Jayco Pennacle has dfld 40121 heater. When turn on have
2020 Jayco Pennacle has dfld 40121 heater. When turn on have to crank temp to 78 or up to get to come on and then goes out and blows reset switch … read more
Robert
Robert
RV Tech Support
Vocational, Technical or Trade Scho
22,947 satisfied customers
Do I need to be a member to ask a question? 2019 Jayco
The issue is that the furnace will not turn on. I checked the propane and the fuses and also turned the reset/power switch off, waited, turned it on again. No response, no clicking, no blower. It was working fine a day ago. I believe the problem is with the thermostat but I'm not sure what to do now.… read more
KevinS121
KevinS121
Some college
2,558 satisfied customers
I'm using my hawk AC for the first time and the jayco
I'm using my white hawk AC for the first time and the jayco command has a ! by AC Main It won't come on … read more
RandyL45
RandyL45
Owner/Technician
RV Repair
307 satisfied customers
Dometic DF furnace won't heat. I can start blower manually
dometic DF furnace won't heat. I can start blower manually by turning switch of unit off then on again. I had switched propane tank to new full tank … read more
Nachum Wagschal
Nachum Wagschal
3,168 satisfied customers
Cannot get the heat to come on. The gas works on the
Cannot get the heat to come on. The gas works on the stovetop and the hot water heater. … read more
KevinS121
KevinS121
Some college
2,558 satisfied customers
The tank ran out of gas yesterday morning and we changed out
The tank ran out of gas yesterday morning and we changed out the gas tanks. We went to turn the thermostat on and the furnace won't come back on. Is there a safety switch or something preventing it co… read more
Nachum Wagschal
Nachum Wagschal
3,168 satisfied customers
The furnace quit, I found code for limit switch/ air flow so
The furnace quit, I found code for limit switch/ air flow so I replaced the high limit switch and sail switch. When I turned it back on the blower kicked on then the burner kicked on but the burner st… read more
Nachum Wagschal
Nachum Wagschal
3,168 satisfied customers
My furnace has stopped working. it's a 2020 jay flight 24
i really didn't want to to it myself but local service says they can't look at it till next week. … read more
Nachum Wagschal
Nachum Wagschal
3,168 satisfied customers
I have a 2020 Jayco Jayflight with the follow furnace:
Good afternoon. I have a 2020 Jayco Jayflight with the follow furnace: Dometic DFMD30121. Last night I ran out of propane. Today, I can't get the furnace to ignite. … read more
LonvB
LonvB
Co-Owner
MBA
9 satisfied customers
Furnace will not start, blower will not turned on, fuse is
Furnace will not start, blower will not turned on, fuse is good and there is power to the thermostat. 2006 Jayco travel trailer Atwood furnace … read more
Randall
Randall
RVIA Certification
Vocational, Technical or Trade Scho
26,243 satisfied customers
I just bought my Jayco Jayflight 28 foot trailer and it's
Yes, I just bought my Jayco Jayflight 28 foot trailer and it's hooked up to my house power. 15 amp with 30 amp converter on a surge. it has power but the Ac/fan won't come on I'm trying to go camping tomorrow and checking all of the systems … read more
Randall
Randall
RVIA Certification
Vocational, Technical or Trade Scho
26,243 satisfied customers
I can't get my dometic furnace to work in myh Jayco
I can't get my dometic furnace to work in myh Jayco Hummingbird trailer … read more
Randall
Randall
RVIA Certification
Vocational, Technical or Trade Scho
26,243 satisfied customers
Can you show me a diagram of plumbing and gas lines in a
Can you show me a diagram of plumbing and gas lines in a 2004 jayco jayflight? We have a propane leak but can't find it. … read more
Randall
Randall
RVIA Certification
Vocational, Technical or Trade Scho
26,243 satisfied customers
I have a 2015 Jayco Jayflight with an Atwood AFMD30121
I have a 2015 Jayco Jayflight with an Atwood AFMD30121 heater and it will not work at all now. At the same time the AC fan won't work. I had a bad sail switch and was checking it and using the reset b… read more
Randall
Randall
RVIA Certification
Vocational, Technical or Trade Scho
26,243 satisfied customers
We have a new jayco 16' jayflight trailer we cannot star the
We have a new jayco 16' jayflight trailer we cannot star the furnace or the water heater.Our manual does not have page numbers!!!! Could it be we are stuck with a trailer that cannot operate unless it… read more
Robert
Robert
RV Tech Support
Vocational, Technical or Trade Scho
22,947 satisfied customers
My Atwood furnace is not lighting, and giving me the
My Atwood furnace is not lighting, and giving me the ignition lockout fault signal. I have reset the furnace, have plenty of propane, slowly turned off and back on the propane to see if the regulator … read more
Robert
Robert
RV Tech Support
Vocational, Technical or Trade Scho
22,947 satisfied customers
My hydro-flame 8500-IV furnace will not start. The diagnostic
My hydro-flame 8500-IV furnace will not start. The diagnostic light on the inside says "Ignition lockout fault". What to do?… read more
Michael Reush
Michael Reush
Master Technician
High School or GED
3,175 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:

Excellent reply, and also very quick. Really sounds like the Expert knows what he is talking about. I will be back to use your service when I need more help with my RV.

DutchUSA

Highly recommend this RV expert. Prompt, good and detailed answers were given. Very willing to help with genuine concern. I will ask for him next time.

JackUSA

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

< Previous | Next >

Meet the Experts:

gene

gene

RV Mechanic

1,100 satisfied customers

28 yrs exp in the industry

Nick

Nick

RVIA Certification

664 satisfied customers

5 years RV repair and reconstruction, Fleetwood RV Training course completion.

Steve F.

Steve F.

RVIA Certification

443 satisfied customers

Journeyman and Master RV technician, Mechanical & Aerospace Engineer. RVIA Technical Consultant

Randall

Randall

RVIA Certification

26,243 satisfied customers

RVDA/RVIA Master Certified Technician with many years experience.

Chris (aka-Moose)

Chris (aka-Moose)

RV Mechanic

2,418 satisfied customers

24 years of experience diagnosing & repairing

Wayne

Wayne

RV Mechanic

2,163 satisfied customers

Work on several type of Rv engine, Trans, brakes

D. Wood

D. Wood

RV Parts Store Owner

205 satisfied customers

Slide Out, Jack & Hitch Specialist

< 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