I've used a bunch of these over the years. A couple of ways the contacts
can get crappy. One is to let moisture in...not the ambient kind, just not
securing the top and have it blow off and that sort of thing. the second is
have lightning hit. Even less than a full hit will pit the contacts and
If it is just oxidation, like the first case, I loosened the spring and
disassembled it. Then I used jewelry cleaner on a cotton swab to clean it.
always did the trick.
If it was lightning damage, you could go several ways...not use that relay
or unsolder the old one and replace it, kind of a PITA.
I have used the RCS-8s for years and love em.
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