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The first time it happened was shortly after turning the shower off on the switch on the actual shower unit. I isolated the problem (or so I thought) by turning it off at the FCU. It trips when turning the FCU back on again while shower is connected to it. (No problem when disconnecting the...

Its a 'pump' shower and its on a spur of the ring main.

Thanks for your replies... Perhaps I was being a bit premature in my conclusions then! All I did was disconnect the shower from the ring main (inside the shower unit itself) and turn on the fused switch box and nothing blew. I therefore assumed that the shower was causing the tripping. (There...

After more investigation, it is definitely the shower at fault. Any ideas what it could be? Another forum suggested motor/pump assembly. I really want as many opinions as possible before forking out on another shower unit! Thanks again.

Thanks for your reply. I've unplugged everything else on that circuit and its definitely just the shower. I think the only answer is to get someone in who knows what they're doing. Thanks again.

This morning, roughly ten minutes after turning off power shower, the RCD blew and after narrowing it down, found it to be the shower itself. Tried fuse, checked wiring in shower unit and fused switch box and everything seems in order. Inside the shower unit is bone dry. The circuit trips...