Re: Furnace oddities.

Hi Dan
Your furnace I think should have a motor that drives a squirrel cage
fan on each  end of it's shaft.
One end blows across the out side of the combustion chamber (inside
air) the other end force feeds outside the coach air into and out of
the combustion chamber through an exterior wall double tube set up.
This motor/fan should come on for a few 10s of seconds to clear the
inside of the chamber before the sparker starts firing. Some units
have a means of adjusting the amount of the forced air that is fed
into the gas/air burner. 
Here is a site that may be helpful even if your exact model is not listed.
See ya

http://www.marksrv.com/siteindex.htm
http://www.marksrv.com/furnace_trouble_shooting.htm







--- In toyota-campers@xxxxxxxxxxxxxxx, "listermann42" <dan@...> wrote:
>
> Is it possible to "flood" a furnace?  I used to believe that the 
> sparker was in bad shape because it only seemed to work initally.  
> After a few attempts it probably would not work again until 
> it "rested" a while.  That is what seemed to happen again tonight 
> after I thought I had fixed it.  I went looking for a propane leak 
> around the new pilot line.  I used a lighter ( yes, I know all about 
> it).  What I found was what appeared to be propane leaking out of the 
> combustian chamber like it was full of the gas.  It did not explode, 
> it just slowly burned.  As usual, after the rest, the pilot lit the 
> first time.  I am starting to think that the combustian chamber can 
> fill with propane gas and cause a lack of oxygen. The spark might be 
> good, but the propane does not have enough oxygen to ignite.  Is this 
> possible?
> 
> Dan
>






 
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