Lampost Light Problem

Lampost Light Problem

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Lampost Light Problem
  #1  
Old 01-10-2019, 10:17 AM
Pinhead Pinhead is offline
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Default Lampost Light Problem

My lamppost light stopped working a few weeks ago.

Last week I took the light out and tested it and it was good so I replaced the light sensor and turn the power back on. The light came on for about one minute then went off, I thought I had it fixed but the next night we noted the light did not come on.

Going to take it apart again and see if I can find anything. Is there a way to test the sensor?

Jack
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  #2  
Old 01-10-2019, 10:50 AM
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ColdNoMore ColdNoMore is online now
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There was a defective batch of sensors (can't recall the brand)...that were being sold by Ace a few years ago.

Maybe there are still some left...from wherever you bought it?
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  #3  
Old 01-10-2019, 10:57 AM
photo1902 photo1902 is online now
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Quote:
Originally Posted by Pinhead View Post
My lamppost light stopped working a few weeks ago.

Last week I took the light out and tested it and it was good so I replaced the light sensor and turn the power back on. The light came on for about one minute then went off, I thought I had it fixed but the next night we noted the light did not come on.

Going to take it apart again and see if I can find anything. Is there a way to test the sensor?

Jack
The light turning on for a minute or two after restoring power, is a self-test feature of the sensor. I agree with the other poster, grab a new one and replace the one which isn't working.
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  #4  
Old 01-10-2019, 11:14 AM
thetruth thetruth is offline
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Quote:
Originally Posted by Pinhead View Post
My lamppost light stopped working a few weeks ago.

Last week I took the light out and tested it and it was good so I replaced the light sensor and turn the power back on. The light came on for about one minute then went off, I thought I had it fixed but the next night we noted the light did not come on.

Going to take it apart again and see if I can find anything. Is there a way to test the sensor?

Jack
You do not say if your fixture has only one bulb.

A bulb can stop working with the filament still intact so that is will work sometimes. Try easy first and take a bulb you know is good and install it. If, you have replaced your bulbs with the LEDs they fail weird. It could work sometimes and then not work other times.

Truth, my neighbor with a three bulb fixture replaced the sensor
and then discovered that all three bulbs were blown. As to testing the sensor, you could easily by pass the sensor and see if the lights light.
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  #5  
Old 01-10-2019, 11:24 AM
Pinhead Pinhead is offline
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Got it from Lowes, but that is possible.
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  #6  
Old 01-10-2019, 11:30 AM
Pinhead Pinhead is offline
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update I went out and checked wiring it was correct per what I could find on the internet, Red wire to lamp black wire to post reversed the red to post and black to lamp and seems to working somewhat ok. Light turns on and off when anything hits the post.


I have one blub and it is an outdoor LED that I got from Blubs Plus.


Not sure if I should change the wiring back
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  #7  
Old 01-10-2019, 11:30 AM
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rjm1cc rjm1cc is offline
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Check your ground fault sensor. You might have a short some place in the line and it is turning off the ground fault. Assuming the bulb and the light sensor is good a short in the wiring is most likely the problem. Recheck your connections.
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  #8  
Old 01-10-2019, 12:22 PM
photo1902 photo1902 is online now
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Quote:
Originally Posted by Pinhead View Post
update I went out and checked wiring it was correct per what I could find on the internet, Red wire to lamp black wire to post reversed the red to post and black to lamp and seems to working somewhat ok. Light turns on and off when anything hits the post.


I have one blub and it is an outdoor LED that I got from Blubs Plus.


Not sure if I should change the wiring back
All whites get tied together. The red wire from the photocell gets connected to the black wire from your lamp post FIXTURE. The black wire from the photocell gets connected to your supply/load line, which is the black wire coming from the bottom of your post. When you say it turns on and off when anything hits it, do you mean it literally turns on the light when you hit the post? Also, after restoring power to the post, the light will come on, and eventually go off. If its turning on and off in the daylight, you have a short somewhere, and need it addressed.
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Here is a direct answer
  #9  
Old 01-10-2019, 01:11 PM
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Toymeister Toymeister is offline
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Default Here is a direct answer

Quote:
Originally Posted by Pinhead View Post

Going to take it apart again and see if I can find anything. Is there a way to test the sensor?

Jack
Don't R&R it, check it. Using your multimeter check the resistance of the photo cell. It is low under light and high with darkness
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  #10  
Old 01-10-2019, 04:55 PM
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Quote:
Originally Posted by Pinhead View Post
update I went out and checked wiring it was correct per what I could find on the internet, Red wire to lamp black wire to post reversed the red to post and black to lamp and seems to working somewhat ok. Light turns on and off when anything hits the post.


I have one blub and it is an outdoor LED that I got from Blubs Plus.


Not sure if I should change the wiring back
Pinhead, there should have been a set of wiring instructions with the new sensor, from your description I think your initial wiring was wrong, and the sensor is now toast. The sensor cannot easily be tested without having power on it, I would not bother and just get another sensor and carefully install.
Once installed, take BLACK tape (opaque) and place over the sensor, turn on the power, after a short delay (~60 seconds) the light should come on, take off the tape, it should go out.
If nothing happens, check the GFI in the garage, on of them is probably tripped, reset, and test sensor with tape again.
If the GFI trips again, then I would suspect a short in the wiring. My neighbor actually found wiring with JUST wire-nuts and NO waterproofing on his lamp post. If the problem occurred after a heavy rain I would really look at the wiring in the ground. If the GFI trips due to movement of the lamp post, then you probably have a short to the post and the wiring where the wiring comes into the post below grade.
VERY IMPORTANT: If the above information makes you uncomfortable or you have concerns about doing any of this work, call an electrician.
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