I recently finished a job started 18 months ago to fit an electric shower.
The wiring was done by my now ill father-in-law, and I merely attached the
shower, fitted an earth leakage circuit breaker, and an isolating switch.
When I first tested it, everything seemed fine- I was then though told to
fit this earth leakage circuit breaker- as soon the shower is now turned on,
this trips off.
Any ideas as to what I nee to do?