By Amy Rodriguez | Updated March 24, 2022
A photocell, or photoresistor, senses ambient light levels. As daylight fades, it detects the drop in illumination and triggers your outdoor lighting system.
1. Wiring and Connections
Ensure all cables between the photocell and the control board are securely soldered and free from corrosion. Loose or damaged wires can cause intermittent or failed activation.
2. Power Supply Integrity
Verify that the lighting system is receiving consistent voltage. A weak or fluctuating power source can prevent the photocell from functioning correctly.
3. Physical Damage
Inspect the photocell for cracks or wear. Even minor fractures can disrupt light sensing. If you notice any damage, replace the unit immediately.
If troubleshooting steps do not resolve the problem, or if the sensor shows visible cracks, a replacement is the most reliable solution.
