upstairs lights not working

[gcg1967]

Hi, I seem to have a strange problem with my upstairs light circuit.
The only ceiling light of the 5 upstairs lights working is the bathroom.(3 bedrooms,hall and bathroom).
There appears to be power getting to each of the wall light switches but other than the bathroom the lights arent coming on. Has anyone got an idea as to whats wrong or to what I should check next ?

 

[ricicle]

How do you know there is power at the switches ?

 

[gcg1967]

Hi, Ive them checked with electric screwdriver and they are live.

 

[Taylortwocities]

Have a look in teh WIKI and see how lighting circuits work.

In most cases the live and neutral is carried from one lighting point to the next and a break in either can cause the rest of the lights in the chain to stop working.

The usual cause is when someone has installed a new light fitting and either it has not been done properly and/or one of the wires has broken in the process.

Have you done any work on the lights recently?

EDIT, that electric screwdriver is useless. Throw it away. It will only, possibly indicate the presence of a live conductor. You also need to check if the neutral is there. You need a proper two lead voltage tester or a multimeter.