Dorothy wrote:
Hi all,

A while ago I had a problem with our water heater pilot light staying lit. I
asked here and the answer I received was to replace the thermocouple, which I
did, and that remedied it. Now I am experiencing the same problem again -
where the pilot won't stay lit - and replacing the thermocouple doesn't fix
it this time.

What could be the problem now?

Thanks!

Dot

Is it in an area where it's affected by wind? Mine is outside - in a
closet - but at times the wind used to get in there and blow the pilot
out. I've since corrected that problem and the pilot stays strong all
the time. Probably a stretch, but also worth considering is its acess
to oxygen. If your heater is so well sealed in an enclosure that the
fire has no air to fuel it, it might squelch the pilot. Of course,
when the burner is up and running, it has enough force to pull air -
even through the smallest area. The pilot, on the other hand, is not
that strong...