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Posted by hallerb@aol.com on November 6, 2007, 9:23 am
> It's getting cold here....so I went to fire up the natural gas
> fired space heater in my basement. The pilot would light but go
> out when I released the control knob.
>
> So...I replaced the thermocouple. Every so many years, it seems
> to need it. However, this did not solve the problem.
>
> Preheating the thermocouple made the pilot stay on. For about
> two minutes.
>
> I can't really see into the pilot compartment when I'm holding
> the knob down. Using a mirror did not help much. It looks as if
> the pilot flame is not hitting the thermocouple; it's "leaking"
> to the right side.
>
> The pilot unit is pretty standard stuff, the thermocouple is on
> the left, parallel to and separated from the pilot by about half
> an inch. The whole assembly is rotated about 20 degrees from
> vertical, about 11 o'clock. The pilot orifice faces what I would
> call a "deflector" that bends the flame towards the thermocouple
> and also has a "v" assembly that routes the flame around the
> thermocouple.
>
> It looks as if the flame is not being directed towards the
> thermocouple and is just randomly burning around the deflector. I
> have cleaned this as best as I can, poked and prodded, chipped
> and scraped, with no help.
>
> The only thing left I can think of is that the orifice itself is
> partially obstructed. Is there any way to clean this without
> damage and without disassembling the whole heater? Is there
> something else that would cause this problem?
>
> PB
a good friend had the exact same problem and reformed the mount moving
the thermocouple more towards the flame.
reformed is technicians high priced lingo for I BENT IT:)
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