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Old 10-29-2013, 05:12 PM   #11
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Good for you Dan it sounds like a bad contact, you might want to spay some contact cleaner in the plug end and push it on and pull it off a couple of times. Glad you didn't need a new board....Happy Camping
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Old 10-30-2013, 08:08 AM   #12
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This is why they call it troubleshooting!
Sometimes we shoot in the dark!
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Old 11-12-2013, 09:39 AM   #13
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FAILURE -- AGAIN...
Went camping last weekend.
Tried the furnace and it would not work.

As before it lights but keeps on sparking and shuts off.
After 3 times it faults out.
I cycled the power and tried again.
That time it lit and stayed on but I can't trust it to work when we
need it. We had electric available this time but I need to know it's
gonna work when we do need it.

Thanks to Barry for his " flame rectification" post. I googled and now know
how it's supposed to work without a separate flame sensor.
I will remove the burner assembly and carefully polish the spark probe and
the burner and try again. I can do that from the front end and don't have
to remove the furnace.
Since it works sometimes I feel like it's just -so close- that might bring it
back to the land of the living!

It's 31 deg and I'm gonna wait a few days for a little warmer weather
to pull it and try again. I'll report back later. I sure don't want to spend the
$100 on a new board unless absolutely necessary.
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Old 11-12-2013, 10:11 AM   #14
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Quote:
Originally Posted by KyDan View Post
FAILURE -- AGAIN...
Went camping last weekend.
Tried the furnace and it would not work.

As before it lights but keeps on sparking and shuts off.
After 3 times it faults out.
I cycled the power and tried again.
That time it lit and stayed on but I can't trust it to work when we
need it. We had electric available this time but I need to know it's
gonna work when we do need it.

Thanks to Barry for his " flame rectification" post. I googled and now know
how it's supposed to work without a separate flame sensor.
I will remove the burner assembly and carefully polish the spark probe and
the burner and try again. I can do that from the front end and don't have
to remove the furnace.
Since it works sometimes I feel like it's just -so close- that might bring it
back to the land of the living!

It's 31 deg and I'm gonna wait a few days for a little warmer weather
to pull it and try again. I'll report back later. I sure don't want to spend the
$100 on a new board unless absolutely necessary.
DAN, Sorry to hear you are still having a problem, you can try and clean the electrode rod and make sure it's in the same position after. Check all your connections again make sure that your ground is clean and well connected. Also make sure the wire from the electrode is not grounding out before it plugs into the board. If it is still doing the same thing I would have to think it's your board, lets hope not.
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Old 11-12-2013, 12:07 PM   #15
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Quote:
Originally Posted by gljurczyk View Post
DAN, Sorry to hear you are still having a problem, you can try and clean the electrode rod and make sure it's in the same position after. Check all your connections again make sure that your ground is clean and well connected. Also make sure the wire from the electrode is not grounding out before it plugs into the board. If it is still doing the same thing I would have to think it's your board, lets hope not.
ITS THE BOARD. THIS is exactly what they do as they go bad. Dino boards are dependable and work well, but make sure you get the right model #.

There is nothing worse than an undependable furnace.
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Old 11-14-2013, 11:58 AM   #16
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Now that I know how it's done, I can pull out the burner/spark gap assembly
in under 5 minutes. Really- it just takes a little power phillips screwdriver and
it's pretty easy.
So I pulled it yesterday afternoon and bent the spark gap to be a little more
over the center of the burner. I shined it with a scotchbrite pad and put it
back.
I tested it yesterday and it lit the 1st try and stayed lit.
I tested it again this morning and it lit and stayed lit.
I plan to test it every day for a few days and then later on this winter.
If it fails to work even one time, I'll order a dino board but I'm gonna give
it one last chance to work......

If I was planning a cold camping trip without electric I'd probably just
replace the board now but our next outing is TopSail Hill Preserve SP
and they've got full hookups.
I plan to test the furnace just about every day on that trip and if it works-
great. If not, I'll spend the buck$ for a new board.


Fingers crossed!
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2004 5.3L Silverado 1500 ext. cab 2WD
1999 Suzuki Intruder Motorcycle
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Camping days 2010-53, 2011-47, 2012-41,
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Old 11-14-2013, 12:51 PM   #17
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Quote:
Originally Posted by KyDan View Post
Now that I know how it's done, I can pull out the burner/spark gap assembly
in under 5 minutes. Really- it just takes a little power phillips screwdriver and
it's pretty easy.
So I pulled it yesterday afternoon and bent the spark gap to be a little more
over the center of the burner. I shined it with a scotchbrite pad and put it
back.
I tested it yesterday and it lit the 1st try and stayed lit.
I tested it again this morning and it lit and stayed lit.
I plan to test it every day for a few days and then later on this winter.
If it fails to work even one time, I'll order a dino board but I'm gonna give
it one last chance to work......

If I was planning a cold camping trip without electric I'd probably just
replace the board now but our next outing is TopSail Hill Preserve SP
and they've got full hookups.
I plan to test the furnace just about every day on that trip and if it works-
great. If not, I'll spend the buck$ for a new board.


Fingers crossed!
Glad you got going again, intermittent problems are almost impossible to diagnose. You can only do what you can do, you now probably understand it better then any service rv outlet, good for you..
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Old 11-14-2013, 10:22 PM   #18
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Quote:
Originally Posted by KyDan View Post
Now that I know how it's done, I can pull out the burner/spark gap assembly
in under 5 minutes. Really- it just takes a little power phillips screwdriver and
it's pretty easy.
So I pulled it yesterday afternoon and bent the spark gap to be a little more
over the center of the burner. I shined it with a scotchbrite pad and put it
back.
I tested it yesterday and it lit the 1st try and stayed lit.
I tested it again this morning and it lit and stayed lit.
I plan to test it every day for a few days and then later on this winter.
If it fails to work even one time, I'll order a dino board but I'm gonna give
it one last chance to work......

If I was planning a cold camping trip without electric I'd probably just
replace the board now but our next outing is TopSail Hill Preserve SP
and they've got full hookups.
I plan to test the furnace just about every day on that trip and if it works-
great. If not, I'll spend the buck$ for a new board.


Fingers crossed!
Make sure you cycle it through a couple of times, not just one. Some times the boards will allow one cycle and then refuse to light the 2nd or 3rd time through. I had that happen once time. If you use it overnight and it cycles a few time I think you got it licked..

PS When I get a new component like that, I immediately put into service and keep the old "good" one as a spare. I figure why leave the old part in when you have a new one and figure the old one will be fine as a spare. Just a thought.
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Old 12-05-2013, 07:44 AM   #19
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Quote:
Originally Posted by garbonz View Post
Make sure you cycle it through a couple of times, not just one. Some times the boards will allow one cycle and then refuse to light the 2nd or 3rd time through. I had that happen once time. If you use it overnight and it cycles a few time I think you got it licked..
Went out to my trailer a couple days ago and buttoned everything back up.
I have to raise up the sofa/bed remove a thin plywood panel under the sofa,
remove a corner trim piece and some other stuff.... It involves about 5-10
minutes mostly on my old knees taking apart or putting back.
Fired up the furnace one last time and the dang thing failed!
It lit immediately but kept sparking and after a few seconds shut off.
Same old thing. On the 3rd try it stayed lit but there is NO WAY I'm gonna
trust it now. When it's freeking cold and we need heat we want it to work
every time!

Dino board is on the way now. I was hoping it would get here before the
next cold wave but that's not gonna happen.
They're predicting heavy rain today, 6" snow tomorrow and an ice
storm on Sunday! Bummer!

One thing sure, I know exactly what tools and what screws to take out
to get that thing outta there!
I've already pulled the furnace out and it's laying in there on the
floor waiting for the USPS to deliver my new dino board.
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Dan & Rita D
2004 5.3L Silverado 1500 ext. cab 2WD
1999 Suzuki Intruder Motorcycle
Blue Ox WD hitch, AirLift load levelers

Camping days 2010-53, 2011-47, 2012-41,
2013-41, 2014-31, 2015-40, 2016-44, 2017-63
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Old 12-05-2013, 08:41 AM   #20
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Darn !!! When my furnace failed (It was completely silent) I tried everything I could think of too. I was lucky, I found a take out board at an RV surplus store in Indiana for around 70 dollars, and it is back alive now. I still have the old board somewhere ... I wish I had the know how to troubleshoot and fix the board itself.

Good luck with the furnace, and be safe, that storm looks definitely very nasty !
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