Service Call: Commercial Automatic Entrance Gate Issue: The gate has just stopped working and its been stuck open for the past few days and needs to be closed. Work Completed: The technician Opened up the drive chain and sprocket gearbox at the back of unit and found a garbage bag jamming one of the sprockets. The technician removed the garbage bag, lubricated all moving components on the gate and cycled it multiple times for safe and proper operation.