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How to Remove the Light Sensor on a Low Voltage Lamp Post

If your low-voltage lamp post is not lighting at night, it could stem from a faulty light sensor. Light sensors are on dusk-to-dawn type lamp posts. Once the sun sets, the sensor completes a circuit to turn on the lamp post. Removing the light sensor on a low-voltage lamp post to replace it depends upon the type of lamp post. Although lamp posts can be taken apart in several ways, the general process is similar.

Things You'll Need

  • Phillips screwdriver
  • Hex wrench

Instructions

    • 1

      Turn off the circuit breaker that powers the lamp post. Even if you have a low-voltage lamp post, the possibility of an electrical shock persists from live wires. Cutting off power to the lamp post eliminates the risk of shock.

    • 2

      Remove the cap from your lamp post, if you have a multiple light post. The disassembly process varies among different brands and models. The electrical wire connections to the lamp socket are usually under a decorative cap, if you have multiple lights on the post. The cap unscrews by hand or might have a single securing screw requiring a Phillips screwdriver.

    • 3

      Turn the screws securing the main lamp to the post with a Phillips screwdriver or hex wrench, if you have a single light lamp post in which the light sits on top of the post.

    • 4

      Find the clear box that mounts inside the wire housing. The box is the light sensor for the lamp post. Two wires usually are leading out from the box. Follow the wires and untwist the wire nuts securing the sensor wires to the lamp post wires. Separate the sensor wires from the lamp post wires.

    • 5

      Turn the decorative securing nut counterclockwise with your finger. The securing nut looks like a winding knob for a watch and mounts to the outside of the wire housing. The nut secures the sensor to the housing. Once you unscrew the decorative nut, lift the light sensor out of the housing.