My electric shower blew the cartridge fuse in the consumer unit while I was in it the other day, giving me a very refreshing cold shower. I replaced the fuse, and ran it for 10 mins or so, and all seemed OK, it didn't blow the new fuse.
Is this something I should be worried about, or do cartridge fuses sometimes blow with age? The old fuse (and shower) are probably about 12 years old.
It's a 30A fuse, I'm not sure of the power rating of the shower (it's a Heatstore Esprite II), but I guess it must be taking pretty close to 30A. But it has been working fine for at least 6 years.
I'm probably being over cautious, but the whole concept of a high power electrical device which has blown a fuse in close contact with water which gets sprayed on me has started to worry me. Would an RCD be advisable?
TIA
-- Andy