I have removed my bathroom light pendant to fit downlighters. There was a spur from the fitting to a shaver point which I removed, however, I am now left with 4 wires coming from the ceiling. Red blue yellow and earth. But the light switch is red and black! I have tested the ceiling wires and the red and yellow are live even with the switch at the off position. I am getting 150v. Help! Just need to know what wires are what.
Bathroom light
- Thread starter Deewhy
- Start date
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Not a good start.
That sounds like a three core and earth cable - I am assuming you're talking about conductor insulation colours. Do you have an extraction fan in the bathroom or did you?
It is possible that the red and black switch conductors are coming from and going back to a junction box or another ceiling rose before returning to the bathroom light fitting.
If the bathroom is upstairs then if you can get in the loft you can visibility trace the cables and try to figure out what the arrangement is. If the bathroom doesn't have a loft space above then you will have to utilise a multi-meter to try and establish which cables are connected to what.
Before doing such tests you much make sure the circuit is proved dead.
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