14
Troubleshooting
Fault
Possible reasons why
Remedies/Explanations
The door does not open
The motor does not start
Control switch or is set to OFF
Change the setting of the control switch
Mains power is missing
Check the mains power and fuse in the building
The motor starts but the
door does not open
Mechanical lock is locked
Unlock the lock
Something jammed beneath the door
Remove object
Electric striking plate is binding
Select lock release
Adjust striking
Arm system has come loose
Tighten the arm system by installation steps
The door does not close
Control switch is set to HOLD
Change the setting of the control switch
Something jammed beneath the door
Remove object
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