Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×

Thread Tools Display Modes
Old 01-22-2008, 10:33 PM   #1
Junior Member
Joel4JC's Avatar
Join Date: Jan 2008
Posts: 4
How To Troubleshoot Furnace Problem?

I have a 2003 Sunseeker 2900 LE. The furnace has stop working. The blower comes on almost instantly but, there is no heat and a couple of minutes later the blower cuts off.

Are there any technicians out there able to walk me through a troubleshooting process? What to test, when, where and how? What to disconnect, when where and how? Etc.

What's the cost of a new furnace? Where do I order one?

Thanks in advance,

Happy Trails Wherever Your Travels Take You.
Joel4JC is offline   Reply With Quote
Old 01-23-2008, 03:54 PM   #2
Senior Member
powerboatr's Avatar
Join Date: Aug 2006
Location: homebase Quitman Texas at Lake Fork
Posts: 1,399
the blower running for two minutes then shutting off sounds like the sail switch is not working
it has to sense airflow inorder to start the firing sequence.
1. airflow through the vents
2. voltage to the sparker
3. gas on
4 burner tries to fire, if n fire the sequence will shut try up to three times of sparking to get a flame/light off, if not it goes into lock out
5. internal thermostat monitor chamber temps on plenum, which regulates the burner on times and off times during the heating event
6. hot air out the vents.

finding schematics is getting crazy, i geuss because somebody blew themselves up

a quick rundown might be
adequate gas supply
good 12 volt supply to the furnace ( i would pull the fuse on it for a few minutes to let the brain reset)
no obstructins in the exhaust outlet or fresh air intake, wasp nest, spider webs, etc
when you turn it to heat and adjust the thermostat to come on, and the fan comes on, wait about 3-5 seconds and listen for the sparking or igniter noises, if you dont hear them then i would say the sail switch is not detecting adequate air flow or a fault has set in the ignition cycle,
good luck
but by all means please be careful around the gas supply and the ignitor and the power wires. no smking etc.... shut off power
Living in the Piney Woods of Texas.
powerboatr is offline   Reply With Quote

Thread Tools
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

» Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.

All times are GMT -5. The time now is 01:31 PM.