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Subject Author Date
water heater pilot rick 07-22-2007
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Posted by on July 22, 2007, 11:55 pm

> kjpro @ usenet.com wrote:
> >> The Streets wrote:
> >>>> Our A.O.Smith water heater (installed Jan 1996) has recently
> >>>> developed the following problem -- the pilot light goes out all the
> >>>> time. Any ideas to keep the pilot lighted?
> >>>>
> >>>> Is the heater old enough now where I should just get it replaced?
> >>>> It is working great when the pilot is lighted.
> >>>
> >>> Often this problem is caused by the thermocouple starting to fail.
> >>> Replacements are inexpensive and readily available at the big box
> >>> stores. And, easy to install. I'd try that first.
> >>
> >> I put in a new water heater a couple weeks ago and was (pleasantly)
> >> surprised to see the burner/ignition chamber completely sealed. This
> >> water heater incorporated a piezo igniter similar to what's on gas
> >> grills that was visible through a glass (plastic?) window. I didn't
> >> look very close but I don't remember there being any access to the
> >> burner chamber.
> >
> >
> > That's right, it's design to new codes.
> > Now they're safer and easier for someone to screw up.
>
> Don't know about that but they are much easier to light.


They're safer because there's no open flame.

They're easier to screw up because there's more parts and people will leave
the covers off, when the bottom screen becomes plugged with cat/dog hair.



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Posted by Edwin Pawlowski on July 22, 2007, 12:26 pm

> Our A.O.Smith water heater (installed Jan 1996) has recently developed the
> following problem -- the pilot light goes out all the time. Any ideas to
> keep the pilot lighted?
>
> Is the heater old enough now where I should just get it replaced? It is
> working great when the pilot is lighted.
>
> Thanks.


How recently has it started and has anything changed? Have you added house
ventilation or a whole house fan that may be sucking air down the flue and
put it out? Open windows that used to be closed setting up a draft?

Or it may be the thermocouple, a cheap and easy fix.



Posted by Joe on July 22, 2007, 12:28 pm
> Our A.O.Smith water heater (installed Jan 1996) has recently developed
> the following problem -- the pilot light goes out all the time. Any
> ideas to keep the pilot lighted?
>
> Is the heater old enough now where I should just get it replaced? It is
> working great when the pilot is lighted.
>
> Thanks.

Your gas control may have an adjustment for the pilot flame, usually
tucked under a protective screw cap on the side. Before adjusting,
make sure the vent hasn't been tricked by some change in the venting.
As other posts indicate, thermocouples are common failure modes as
well. HTH

Joe


Posted by on July 22, 2007, 11:01 pm

> Our A.O.Smith water heater (installed Jan 1996) has recently developed
> the following problem -- the pilot light goes out all the time. Any
> ideas to keep the pilot lighted?
>
> Is the heater old enough now where I should just get it replaced? It is
> working great when the pilot is lighted.
>
> Thanks.


Why not have a competent tech diagnose and repair the unit?



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