Possible causes:
Battery low condition
Multiple collision condition
Collision sensing too sensitive
Faulty motor assembly
Faulty controller
Faulty or disconnected DOSS
Possible solutions:
Measure battery voltage under static and load conditions as per the procedure described later. Replace if necessary
Ensure that duty cycle is not exceeded (10 operations per day)
Clean any corrosive build-up around the battery terminals
Check for something physically obstructing the
movement of the gate or set the sensitivity from High to Medium or Low
Bring in the motor for testing at your closest CENTURION branch as the motor assembly, controller or DOSS might be faulty