Re: Furnace oddities.

See if your furnace will run the fan if the thermostat is turned up.
That way you can clear out the chamber and try for a relight sooner.
WME

--- In toyota-campers@xxxxxxxxxxxxxxx, "listermann42" <dan@...> wrote:
>
> Our furnace is a manual ignition.  I push a peizo igniter to get a 
> spark.  If it does not light within the first couple few pushes, it 
> is unlikely to light unless allowed to "rest" maybe ten minutes.
> 
> Dan
> 
> --- In toyota-campers@xxxxxxxxxxxxxxx, "rollin298" <rollin298@> 
> wrote:
> >
> > 
> > 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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