Changing the master code using the biometric keypad erases the finger print identified with that combination.
My keypad says I need a key when trying to perform a management operation (78* set time, 73* set date, etc).
You have programmed the lock using a green or red key from your system software.
You are entering the wrong combination. Code enter into the lock may not be registering proper.
Changed combination to the opening index instead of the change index.
Your accelerator spring is not loading.
The over center spring in the cam has broken.
This problem could be caused by mechanical, alignment or installation issues.
The combination has been lost or misplaced.
The opening index (12 o’clock) was used to change combination.
The lever could be stuck and therefore not falling into place properly.