Workshop led lighting help

Bowmeat · Aug 20, 2022

Hi all , hopefully somebody on here can help me out, I recently went to change a led unit in a workshop , cut power ,changed led unit , then when I switch power back on it didn't work and also took the bank of 5 lights down with it , disconnected it and the bank still doesn't work, checked fuse , all ok , checked switch ,(retractable switch) power is their . Still No power at all 5 lights , at some point they have been on sensors as they is 1 highbay sensor on each bank (6 banks)
Any thoughts and help would be greatfully appreciated
Thx Shane

Bowmeat · Aug 20, 2022

Bowmeat said:
Hi all , hopefully somebody on here can help me out, I recently went to change a led unit in a workshop , cut power ,changed led unit , then when I switch power back on it didn't work and also took the bank of 5 lights down with it , disconnected it and the bank still doesn't work, checked fuse , all ok , checked switch ,(retractable switch) power is their . Still No power at all 5 lights , at some point they have been on sensors as they is 1 highbay sensor on each bank (6 banks)
Any thoughts and help would be greatfully appreciated
Thx Shane

Unsure if I've posted this in the right question

westward10 · Aug 20, 2022

What do the sensors do turn them off when there is sufficient light or are they motion sensors.

Bowmeat · Aug 20, 2022

westward10 said:
What do the sensors do turn them off when there is sufficient light or are they motion sensors.

Bowmeat · Aug 20, 2022

Thx for a reply , that's a pic ov them pal

Bowmeat · Aug 20, 2022

Bowmeat said:
Thx for a reply , that's a pic ov them pal

I've never seen sensors work . I Just use the switch

GBDamo · Aug 20, 2022

Bowmeat said:
Unsure if I've posted this in the right question

Are these plug in units or are they direct wired.

In either case this would appear to be the first on this "bank"

If direct wired I'd check your wiring, post pictures if possible.

If plug in, then it's not beyond reason to think a wire has come loose in the junction box behind the plug.

If these are LED lights then there may be a faint glow, if so you've a loose or missing neutral.

However the fact that changing this light has taken the others out would lead me to think this lamp has the loop in/out and switch drop wiring associated to it.

westward10 · Aug 20, 2022

They are motion sensors so I assume with the retractable switch they are controlled through a contactor. You need to do some testing to rule things out.

Bowmeat · Aug 20, 2022

GBDamo said:
Are these plug in units or are they direct wired.

In either case this would appear to be the first on this "bank"

If direct wired I'd check your wiring, post pictures if possible.

If plug in, then it's not beyond reason to think a wire has come loose in the junction box behind the plug.

If these are LED lights then there may be a faint glow, if so you've a loose or missing neutral.

However the fact that changing this light has taken the others out would lead me to think this lamp has the loop in/out and switch drop wiring associated to it.

I just disconnected one led , live/neutral/earth, at the light base and replaced it for a another led light , this was the last light on the bank ,

Bowmeat · Aug 20, 2022

westward10 said:
They are motion sensors so I assume with the retractable switch they are controlled through a contactor. You need to do some testing to rule things out.

Bowmeat · Aug 20, 2022

westward10 said:
They are motion sensors so I assume with the retractable switch they are controlled through a contactor. You need to do some testing to rule things out.

Its a really high roof . The motion sensors have them quite big joint boxes at the top for wire splitting , and so does each light . Could you hide a contactor in them?

UNG · Aug 20, 2022

Do you know the make / model of the motion sensors they may contain a built relay & timer that can be operated by the retractive switch or there may be a small control panel containing the control equipment for each bank of lights located close to the wiring feeding the lights or with the distribution boards

DefyG · Aug 20, 2022

Probably motion sensor as previously said but could be light sensor, do they (or did they) dim as ambient light level increased? which would imply separate dimmable driver/unit somewhere [remote].
Either way as also suggested probably lighting contactor controlled which needs to be located.

Bowmeat · Aug 20, 2022

UNG said:
Do you know the make / model of the motion sensors they may contain a built relay & timer that can be operated by the retractive switch or there may be a small control panel containing the control equipment for each bank of lights located close to the wiring feeding the lights or with the distribution boards

Bowmeat · Aug 20, 2022

Not a clue mate and sods law they have just been to collect the scissor lift, so I can even get up to look

Workshop led lighting help

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