Looking for some help.

[Jackster J]

Will have another go tomorrow. It’s fried my brain tonight. Thanks for the input. Will hopefully get to the bottom of it.

 

[winston1]

Been there done that.
There is a brand called Fusebox that have trip switches and no fuses.

That is a brand name not a description of the item. And a stupid brand name as well.

 

[AndyPRK]

Suspect I was wrong.
Do you have 3 lights ? Is that why there are so many cables in the box. ?

 

[dannyboi2003]

@Jackster J The two cables that come out of the sensor and out the back of the post, are they both looping down and back up into the plastic box with all the connections?

 

[Jackster J]

Do you have 3 lights ? Is that why there are so many cables in the box. ?

Yes there are two smaller lights at entrance to drive, then one that lights up drive to front door.

 

[stubob]

On the main junction box, remove the red & brown (flex) from the top of the connector & connect them into a separate connector. Keep the other two cables connected together. ISOLATE ELECTRICITY FIRST. Whoever installed this has not identified the neutral & earth conductors nor glanded the SWA correctly.

 

[Deryck Tintagel]

On the main junction box, remove the red & brown (flex) from the top of the connector & connect them into a separate connector. Keep the other two cables connected together. ISOLATE ELECTRICITY FIRST. Whoever installed this has not identified the neutral & earth conductors nor glanded the SWA correctly.

I couldn't make out which red wire was from which cable hence I suggested identifying the cable from the PIR black wire. The neutral is largely irrelevant as they are looped in the main junction box - just the live needs to be separated

The long and short of it is that the PIR wire (black) is putting a short between L and N when the PIR operates - there should be a load connected to the PIR wire

 

[Jackster J]

Thank you everyone for your time and help. I can’t tell you how grateful I am
I have now connected a different sensor with a logical wiring format. It all now works. Horrah!
It’s possible the previous sensor in question was faulty. I got there in the end.