I checked the rapid flashing beacon and both sets of lights flashed correctly. Occasionally, the signal does not get enough sunlight to charge the batteries but will recover with sunshine. Thank you for reporting this issue to the City of Decatur.

Thank you for your attention to this issue. Are their maintenance plans in place to make sure these solar collectors receive maximum sunlight? For example, keeping all trees trimmed, etc?
Julie Hotchkiss

We recently had them serviced and everything checked out fine. Most of the time weather / clouds are the reason the solar panels are not able to charge the batteries.