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    Why won’t my outdoor light switch off?

    Security Specialists

    I have a light in my garden which features a motion sensor to activate it. However, recently, it will turn on and stay on the rest of the night inexplicably.
    Does this sound like a problem with the settings that can be tweaked or that something in the light has broken?
    Ideally I would like to be able to change the setup to make it turn off after a time like previously did.

    Asked by duncan on 1st Mar 2019
    Share this question
    Bishop EEMS

    "Being honest after reading Leo's advice follow it. Sound advice by someone with their head screwed on.

    Unfortunately, it is very likely that this is a faulty sensor that you have in the light that’s causing this.
    Often Passive Infrared (PIR) sensors do go faulty as they are made quite cheaply – particularly with outdoor lights where water can get into them.
    Whereas if this was a dusk-til-dawn sensor, this would sound like it is working correctly. Does the light turn off in the daylight? If so, then it may be the type of sensor or perhaps even a mode it is set to.
    It would be advisable to look for yourself and check if there are any settings that could be tweaked like you mentioned. At worst, you’ve taken down a light that couldn’t be fixed anyway, at best, you find you can fix it yourself."

    Answered on 10th Apr 2019 - Member since Apr 2018 - report
    Nigel prior

    "sounds like it needs switch turned of for 5 seconds and back on."

    Answered on 6th Jul 2019 - Member since Jun 2019 - report
    Leo Security Ltd

    "Unfortunately, it is very likely that this is a faulty sensor that you have in the light that’s causing this.
    Often Passive Infrared (PIR) sensors do go faulty as they are made quite cheaply – particularly with outdoor lights where water can get into them.
    Whereas if this was a dusk-til-dawn sensor, this would sound like it is working correctly. Does the light turn off in the daylight? If so, then it may be the type of sensor or perhaps even a mode it is set to.
    It would be advisable to look for yourself and check if there are any settings that could be tweaked like you mentioned. At worst, you’ve taken down a light that couldn’t be fixed anyway, at best, you find you can fix it yourself. "

    Answered on 1st Mar 2019 - Member since Mar 2019 - report
    All London Locksmiths Ltd

    "The sensor is dirty from the winter and needs cleaning.
    All it needs is water and soap."

    Answered on 31st Mar 2020 - Member since Dec 2018 - report
    Fort Cox locksmiths & access control

    "I suspect that the P.I.R (motion sensor) has been put into floodlight operation, this is usually done by quickly flicking the switch a couple of times. My advice is to turn it off and leave it off for about 5 minutes and then turn it back on.
    You might find the light stays on for longer than usual on start up whilst it sets up but after that it should have returned to the normal setting."

    Answered on 15th Nov 2019 - Member since Nov 2019 - report

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