The most common reason for an LED board inside a fixture to flash would be a drop in voltage. A voltage drop in an electrical circuit normally occurs when current is passed through the wire to the fixtures. The greater the resistance of the circuit, the higher the voltage drop. The input operating voltage at each fixture should always be between 10-15 VAC. Fixtures with color (ZDC) LED boards operate on the voltage between 11-15 VAC. We recommend checking the following:
- Undersize Wire (Not large enough for the length of the run).
- Wire length.
- Bad or corroded splices on that circuit.
- Proper Voltage
For more information on the LED system layout, Click Here.