Been to a job today to fit a new dimmer switch to bedroom lights. Turn off all MCB's marked up for lighting and start to remove switch to check its dead and then replace it. As I remove the switch from the wall one of the wires falls out of its terminal and shorts to earth wire. small flash and a little smoke. so test the wiring and its now dead. go to consumer unit to find the 16A MCB marked garage has tripped.
Check the wiring to switch and find its 3 core and earth with the black core cut back and left, earth wire goes to earth terminal and brown goes to common and grey to L1.
fit new switch and switch back on all mcb's.
test wiring at back of switch and its still dead.
I am thinking that these lghts must be run off a fused spur from garage circuit but can I find it? Customer has no idea where it might be. Any suggestions? Am I right in my thoughts I thought that such spurs were supposed to be acessible.
Check the wiring to switch and find its 3 core and earth with the black core cut back and left, earth wire goes to earth terminal and brown goes to common and grey to L1.
fit new switch and switch back on all mcb's.
test wiring at back of switch and its still dead.
I am thinking that these lghts must be run off a fused spur from garage circuit but can I find it? Customer has no idea where it might be. Any suggestions? Am I right in my thoughts I thought that such spurs were supposed to be acessible.
