Today I went to a job where the lighting in a customers bathroom was not working. They told me that the light had always worked since they moved into the house over 5 years ago. I started by taking the light fitting down, Although this was a batten holder, and I explained to the customer that I would need to replace the fitting with a suitable bathroom light, I found a single 1mm cable feeding the light fitting. Of course as all electricians would realize, there must be a junction box in the loft. I tested the 1mm cable for any mains power, Of course with the switch on lol! And then proceeded into the loft.
After spending 10 minutes clearing the way to above the bathroom area I found this!
After further inspection on the lighting circuit the whole lighting circuit was wired in three plate and was all in good condition, Except of course someone at sometime had messed about with the three plate wiring for the bathroom light. As you can see they had taped up the feed and return ( Loop ) live / phase cables in a connector block, the same with the rest of the cables. If you can also see there is a three core and earth cable Live! Just bare cables in the loft. I have no idea why this was there, all I can think of is there may have been an extractor fan in the bathroom at some time.
Basically the problem was the switch live had fell out of the connector block!
I then pulled all the cables apart, the live feed, the live return and the switch wire and three plated them into the new bathroom light fitting. Electrical problem now solved!
