Photocell shop light stays on

[Daddy454]

So I have a high pressure sodium security light on the front of my shop.I have recently noticed it stays on all the time-day and night.I though at first something-bird ****-was covering the eye,but it is clear.Not being super familiar with the inner workings of these lights,I am wondering what direction I can take to troubleshoot this issue?Ant suggestions?

 

[Bert_]

Change the photo cell.

 

[MBfreak]

Switch off and disconnect. Remove the security light and open the "switchgear" part. Remove all dead inects, debris and wash
all inside electrical parts with alcohol and/or destilled water. Inspect for broken/shorted wires. If there is a relay look closely at the contacts, clean and polish with 800 grit highquality paper. Reassemble. Install, test.
At least 30 % chance it is fixed.
Enclose a favorite of mine.

Ola

 

[Neggy]

when photocells fail they default to on all the time

 

[bbbarracuda]

I've had lights get stuck on, and just need power cycled to clear them. I had one that if there was a power outage less than about 10 seconds, always stayed on until the power was shut off to allow it to reset.

 

[tez929rr]

We used to have one at our gate and the sensors would only last a few years. The bulbs seemed to last forever. IIRC the sensor sat on top of the fixture and came out with 1/4 turn.

 

[23ford]

Had this problem a electrican friend had me tape over half of the eye with electrical tape and it works for 10 years.