After giving up trying to get an electrician to look at such a small job I thought I'd have a go at swapping the (apparently) failed separate PIR unit for an outside lamp.
Problem is that the unit I've bought, which I was assured was a standard type, has instructions for 3 connections, live, earth and 'N'. The cable going into the old unit has four wires - the earth is not attached, the other 3 wires are a live red to live red, a non-live/non-earth black, going to a blue wire in the unit, and a non-live/non-earth greyish/brown wire going to a greyish/brown wire in the unit - checked which were live/earth etc. using a multimeter.
So before I resort to pleading with an electrician, can anyone advise as to which wire is which?
thanks in advance.
Problem is that the unit I've bought, which I was assured was a standard type, has instructions for 3 connections, live, earth and 'N'. The cable going into the old unit has four wires - the earth is not attached, the other 3 wires are a live red to live red, a non-live/non-earth black, going to a blue wire in the unit, and a non-live/non-earth greyish/brown wire going to a greyish/brown wire in the unit - checked which were live/earth etc. using a multimeter.
So before I resort to pleading with an electrician, can anyone advise as to which wire is which?
thanks in advance.