On my Powerbolt 2, the keypad flashes red 3 times with 3 beeps.
There are four reasons for this to occur:
1. Door jammed while attempting to lock. Manually re-lock door. If needed, reposition strike.
2. Door handing code has not been entered. Enter door handing code.
3. No User Code programmed, or User Codes are disabled. Program at least one User Code, or re-enable User Codes.
4. Unsuccessful programming. Attempt programming procedure again.
5. Incorrect User Code entered. Re-enter User Code