Are you sure the gasket wasn't pushed (expanded) out by the capacitor
expanding itself?

You can find out by taking the gasket out and seeing if it is still flat
or if it has, indeed, expanded.  My experience has been that when the
electrolytic fails slowly it bulges the can, and I've seen more than one
push the gasket out.

Sometimes it's just the electro (they have a limited life) going bad,
but often another part goes bad and destroys the electro.

-Adam

Morgan Olsson wrote:

>I think we can learn sometning from why the electric fence unit broke. (my recent post "Urgent ST FJ0916CI datasheet"):
>
>The IC supply radial cased electrilytic cap has become loose because the rubber gasket had expanded and pulled the solder joint broken.  I guess then the PWM got crazy and destroyed the power FET.  The tracks of that is the IC, Power FET, and a resistor got blown.
>
>The original failure reason i tink is that the cirquit board is covered with some grease, and it seems something in the grease diffuses into the gasket which then expands.
>
>I have also found another radial eletrolytic cap on the cirquit board hich has also pushed itself out.
>
>Lesson: Never use grease coating toghether with rubber part components!
>(such as electrolytics)
>
>I always use silicone coating.
>
>The unit is twelve years old, but more than ten of them was on the shelf, so it served only one season.
>
>/Morgan
>
>--
>http://www.piclist.com#nomail Going offline? Don't AutoReply us!
>email listserv@mitvma.mit.edu with SET PICList DIGEST in the body
>
>
>
>
>
>
>

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body