Symptoms
- Light stays on continuously instead of turning off after a delay
- Light seems to retrigger right as it's about to shut off
- Happens more at certain times of day or in windy weather
Likely causes
- CommonTime delay set very longSome sensors have a maximum 'on time' setting well over the expected default.
- CommonContinuous motion nearby, like a tree branch, flag, or busy sidewalkAnything moving repeatedly within range can keep retriggering the sensor.
- PossibleSensitivity or range set too high, picking up distant motionAn overly sensitive sensor can pick up motion from cars, pets, or neighbors well outside the intended area.
- PossibleA stuck or failed sensor mechanismThe sensor itself can fail in a way that keeps sending an 'on' signal.
What to do
- Check the sensor's time delay dial and turn it down to a shorter setting.
- Reduce sensitivity and range settings, especially if traffic, trees, or a busy area are nearby.
- Watch the area during the day to identify anything moving repeatedly within the sensor's range.
- Reposition or angle the sensor away from a road, tree, or other constant motion source if possible.
- Test with settings turned down to their minimum to see if the light now turns off normally.
- Consider switching to manual mode temporarily if you need it off right away.
- Call an electrician if lowering all settings doesn't stop it from staying on constantly.
When to call a pro
Call an electrician if the sensor still won't turn off after adjusting delay, sensitivity, and range settings.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.