Symptom: The WattNode® for LonWorks® meter service LED is flashing quickly and the meter will not communicate.

Applies To: WNC-xx-xxx-FT10, WNC-xx-xxx-FT10-L models, where xx-xxx indicates the voltage model.

Cause: We have observed this behavior when a WattNode meter is connected to a voltage much lower than it is designed for. For example, if a WNC-3Y-480-FT10 meter is connected to 120 Vac line-to-neutral (instead of the correct 277 Vac). The flashing occurs because the power supply starts to power up, then dies because the line voltage is too low for correct operation.

Fix: Verify that the applied line voltage is correct for the model of meter installed. If this is not the problem, contact CCS for assistance.