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Old 01-15-2012, 07:07 PM   #1
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dusk to dawn sensors


I have a dusk to dawn sensor that has worked for years and all of a sudden it started working backwards. It would come on during daylight and go off at dark,any ideas? Thanks

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Old 01-15-2012, 08:38 PM   #2
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dusk to dawn sensors


Is it an actual sensor, or is it a timer? If it's a timer ("astronomical time clock") then it just needs programmed. If it's a sensor, then you need to look at where it's pointed and see if there is an explanation for this behavior. Could it be looking at another dusk-to-dawn light, perhaps? Is it in the shade during the day?

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Old 01-15-2012, 08:49 PM   #3
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dusk to dawn sensors


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I have a dusk to dawn sensor that has worked for years and all of a sudden it started working backwards. It would come on during daylight and go off at dark,any ideas? Thanks
Replace photocell they go bad all the time
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Old 01-15-2012, 09:15 PM   #4
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dusk to dawn sensors


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I have a dusk to dawn sensor that has worked for years and all of a sudden it started working backwards. It would come on during daylight and go off at dark,any ideas? Thanks
Depending on how old it is, it may be time to replace. Those things only work so long before they go bad.
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Old 01-15-2012, 10:53 PM   #5
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dusk to dawn sensors


The sensors are dated, so look at the date on the package when you buy a new one. Otherwise you may get one with short life. The sensor is working sitting on the self. You can test the old one with a self powered test light or VOM.
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