Possible causes
• The operator is encountering a fixed obstruction
• Excessive Wind Loading
• The operator is jammed into an Endstop
• The gearbox is disengaged
• Loose drive and/or sensor connection (battery or motor terminal)
• The operators in a double-leaf installation are different versions, resulting in excess current draw from one operator’s encoder sensor
• Faulty DOSS
• Ensure that nothing is physically hindering the trajectory of the gate(s)
• Ensure that the installation dimensions of the actuator’s rear mounting bracket are according to specification
• Engage operator by turning the key fully clockwise
• Check for loose drive and/or sensor connections on the controller or any junctions between the actuator and the controller
• Ensure that both operators in a double leaf installation are the same version (e.g. v2 - VECTOR2)
• Replace DOSS encoder. Repair work of this nature should be conducted by a qualified technician