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replace a dimmer switch with a simple on/off switch?

i changed a bedroom dimmer switch with a simple on/off one. this didnt work and tripped its associated RCD.

the wires are coloured red and blue, which a pressume are the live and neutral.

with both wires disconnected and hanging in free space, the rcd still trips.
please help

donald
May 2007
you will prob find that blue is not neutrall and is a phase colour meaning it is a switch live put red cable in top of switch or common terminal and blue in bottom terminal this should work n not trip there should b no neutrall at light switch if there is they will b on a connecter block n pushed to the back of the box make sure eart wire is not touching if there is one presant

wayne
July 2007
You appear to have induced a fault when you installed the switch. As you seem to have limited knowledge of mains electricity I suggest that you call and electrician in before something bad occurs.

t
May 2007

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Mend D.I.Y, Switches and Sockets
Mend repair fix switches and sockets