Do let us know what is causing it, and dont just assume that because it doesnt happen again that it is now resolved, some faults seem to stop simply because the actual short of the cables have burned away enough of a gap so a spark cant jump, in which case you may have lost some ring integrity.
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That's a good point and I've come across it a few times.
Ref, the fridge, I do know the difference between a static condenser and a forced air one, I've been in the trade for 30 years! That's why I inferred it's not the problem. Most domestic compressors would struggle to blow a 13a fuse on locked rotor current, so raised run current from a dirty condenser should not be the problem. The problem sounds like an intermittent dead short, although the short could be on the fridge somewhere, or in the ring main.
Let us know what you found.....
