Go Back   iRV2 Forums > iRV2.com COMMUNITY FORUMS > Vintage RV's
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Thread Tools Search this Thread Display Modes
Old 03-07-2011, 06:19 PM   #1
Vintage RV Owners Club
Fleetwood Owners Club
Ford Super Duty Owner
Join Date: Jan 2011
Location: Zephyrhills, FL
Posts: 78
How do I light my furnace?

I have a Duo Therm gas furnace, blower comes on, I can hear gas valve open, doesn't light. I've tried it numerous times, had air in other gas lines. Got very thing else lit. Can't hear any "clicking" of lighter. I can't seem to figure out how to open it up to get to burner it is under my buffet seating. Any help?

timmer594 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 03-07-2011, 07:08 PM   #2
Moderator Emeritus
TXiceman's Avatar

Vintage RV Owners Club
Texas Boomers Club
Oklahoma Boomers Club
Ford Super Duty Owner
Join Date: Aug 2000
Location: Full Time, TX Home Base
Posts: 17,139
Blog Entries: 21
If you hear the gas valve open, it should have DSI, direct spark ignition, You should heat the ignitor sparking. If the voltage is low, you may not be getting the sail switch to clear signaling that the air is flowing.

If it is an older furnace, it may have a standing pilot which you have to manually light. But you should not be hearing the gas valve open if the pilot is not lite.

On the heater cover, there should be some instructions.

Let us know the brand and model.


Amateur Radio Operator (KE5DFR)|Full-Time! - 2012 6.7L Ford Crew Cab Dually -2013 HitchHiker Champagne 38RLRSB - Travel with one Standard Schnauzer and one small Timneh African Gray Parrot
TXiceman is offline   Reply With Quote
Old 03-23-2011, 10:49 PM   #3
Junior Member
Haubera's Avatar
Join Date: Mar 2011
Posts: 8
Two years ago I replaced the sail switch on my DuoTherm as it wouldn't light unless I tapped on the bar holding the sail switch. It was sticking. Last year it wouldn't light again when I was dry camping, and I ended up buying a new battery this spring. It works fine again. So I'd suggest if it won't work when you are hooked up to power, then it's probably the sail switch. If you're somewhat handy you can replace it yourself if it's like mine... I bought the part online for around $40 and put it in myself too (along with new elecrodes for the spark just to make sure).
Haubera is offline   Reply With Quote
Old 03-27-2011, 02:37 PM   #4
Junior Member
Join Date: Mar 2009
Posts: 1
My money is with Haubera
upbobret is offline   Reply With Quote
Old 03-27-2011, 07:34 PM   #5
Vintage RV Owners Club
Fleetwood Owners Club
Ford Super Duty Owner
Join Date: Jan 2011
Location: Zephyrhills, FL
Posts: 78
Well thanks, but it will wait til after summer because now my gennie is crapped out. And I NEED A/C, Dangit...........
timmer594 is offline   Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Furnace help melvonnar RV Systems & Appliances 9 02-12-2011 07:32 PM
Can't get water heater to light. Stump Jumper MH-General Discussions & Problems 16 04-22-2010 08:15 AM
Furnace problem may not be in the furnace! turkeychuckt MH-General Discussions & Problems 3 02-03-2010 03:26 PM
What Filter is better RattlenRam Workhorse and Chevrolet Chassis Motorhome Forum 76 01-22-2010 09:14 AM
Let there be LIGHT zetron Technology: Internet, TV, Satellite, Cell Phones, etc. 4 05-18-2005 08:12 AM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:08 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.