S
sparkyspike
Normally a fault inside the shower would cause an RCD or MCB to trip, or an internal device such as a thermal cut-out to operate.
a electrical fault won't cause a tco to operate only heat trips a tco.
Just to clarify, as I think I've been misunderstood. I was trying to say that an internal fault is less likely than a loose connection, as for a fault of a magnitude to kill the neon would also trip the RCD, MCB or TCO. Which is why I said
If this happened, your neon light should be steady on.