od again, solved?

[Gernot Vonhoegen <gernot.vonhoegen@stir.ac.uk>]

Had a look yesterday, didn't have to look far, as there was no sound from
the relay t all, I suspected a faulty relay, and when taken apart this was
confirmed. Both of the thin wired spools were burnt through.
Exchanging the relay against one kindly donated by a 2500 S brought
everything up to working standard.
Now, question is, why did that thing burn through, anything to worry about
or is that "sh#t happens"?

Cheers, Gernot