Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 08-03-2021, 02:25 AM   #1
Junior Member
Join Date: Apr 2016
Posts: 5
Atwood furnace sail switch testing

Hi All,
My Atwood furnace 8535-IV stopped igniting earlier in the year. I replaced the board but that was not hte issue. It starts the fan but the ignition cycle never starts, dont hear the clicks or any smell of gas. I took apart yesterday thinking maybe fluff on sail switch but it was fine. I took out sail switch and used a multimeter continuity test and I get continutity when the switch is enabled. There is some resistance but not sure how much is correct. I put it back in but still have the same issue. Is there something else I can check on the furnace, like where should I be checking power. I will check Im getting power to the sail switch next weekend but any other advice. Like should I just replace the sail switch anyway.

kenlarkin is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free! 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 08-03-2021, 04:11 AM   #2
Senior Member
Damon Owners Club
Freightliner Owners Club
Join Date: Jun 2012
Location: South Dakota and everywhere!
Posts: 394
Don't know what the resistance should be but if you jump across the contacts of the sail switch (thereby bypassing the switch) and it still doesn't work, the sail switch is not the problem. Obviously, you don't want to leave it that way as a solution but it will work for testing.

If that does fix it, your next step is to clean all the corners on the inside curves of the slats of the squirrel cage. I have found that enough dirt can collect to slow down enough to be the problem. I have used a small bendable bottle brush to get into those corners.
2004 Damon Escaper 4194 LX400
Freightliner XC Chassis,
Cummins ISL 400hp
blang is offline   Reply With Quote
Old 08-03-2021, 04:17 AM   #3
Senior Member
triplewide's Avatar

Join Date: Mar 2015
Location: Greensboro, NC
Posts: 2,059
Maybe Old Biscuit will come to your rescue. Here is a thread that may help:
1998 Min Winnie, 2000 Winbago Journey, 2015 ACE 29.3
2016 Thor Miramar 34.2
triplewide is offline   Reply With Quote

ace, atwood, furnace, switch, test

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
Sail Switch where ? grassy Northwood Manufacturing Owners Forum 1 11-13-2018 08:45 PM
2015 Suburban SF-30Q furnace sail switch access on a 2016 Winnebago Itasca Sunstar Tom Norman RV Systems & Appliances 3 08-13-2018 06:51 PM
Testing, testing, testing CrackerJack Test Your Changes 0 06-23-2017 10:32 PM
Gas Heater Sail Switch bruceh RV Systems & Appliances 14 12-09-2007 11:03 AM

» Featured Campgrounds

Reviews provided by

All times are GMT -6. The time now is 01:10 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2021, vBulletin Solutions, Inc.