Bathroom ligth with 3 reds wires 3 black wires and 3 earth w

[ajcooper7]

Greetings

I'm Mr stupid have just brought a cheap light for my bathroom. decided to install it myself. removed old rose from ceiling to find 3 red 3 black and 3 earth wires. One of the black wires had a small red case which fell off when removing rose. So after removing all cables from block and not noting where the correct position for each cable was. I decided to put it all back together to find upstairs lights didn't work. All I wanted to do was put my new light up. Please help with this simple problem .

 

[ricicle]

If you have forgotten which black had the red sleeving on then it is time to find out which cable goes to the switch by physically tracing it or using a multimeter to find out.

 

[sparkwright]

You're not the first, and you won't be the last.

The cable with the red sleeve on the black is the one that goes to the switch.

Black sleeved red = switch live of light fitting.
Remaining blacks = neutral of light fitting.
All reds = together in a separate connector block not directly wired to light fitting.

All earths together, earth terminal may be on fitting unless it is double insulated.

 

[Taylortwocities]

All is explained (in colour) here: http://www.diynot.com/forums/viewtopic.php?t=37582&start=0&postdays=0&postorder=asc&highlight=