i am replacing a new shower pull switch in the bathroom. the coloured wires from the ceiling are black red and green/yellow can you tell me what wires go to what connection please

andrew, October 2010

get an electrician in.

keving, November 2010

This is quite basic stuff you ask - it suggests that an electrician may be safer for you...

Shower switches will be two-pole i.e. both live (red) and neutral (black) will be switched - as in connected / not connected. One pair of red/black will be the supply into the switch and the other pair of red/black wires will run to the shower.

The Green/Yellow are Earth conductors and are never switched - there should be a separate terminal for them so that they may be permanently joined together.

Isolate the supply before starting &...

Take care...

Peccavi, October 2010