[Note: If your lock is opening on every turn of the knob or lever, except upon entering a code, this may be a
ZERO CODE. Before attempting to remove the lock from the door, refer to the troubleshooting procedures
outlined at bottom of this document for a zero code symptom/solution.]
3100 Series FAQ
Changing the Code / Combination
Perform this procedure with the door open. For your security and protection the combination must be changed
when the lock is installed.
One or all five of the buttons can be used in the combination; however, each button can be depressed or used
only once. Two or more buttons can be depressed simultaneously as a step in the combination.
1. Remove the tamper-proof screw (A) (see figure 1) on the upper left side of the outside lock housing
assembly using the anti-tamper torx wrench supplied.
2. Open the door to avoid being locked out.
3. Clear the lock of any pushbutton entries by pulling the outside paddle to the stop
position and release.
4. Depress the buttons for the existing combination. On new installations, use the
factory-preset combination; 2 and 4 together and release, then 3 and release.
5. Push the ENTER button. A slight click indicates code was entered properly.
6. Insert the chamber code-change tool (B) (see figure 2) horizontally into the
screw hole to a depth of approximately 1/2" (13 mm).
Tip: Mark 1/2" (13 mm) on the chamber code-change tool to eliminate guesswork.
7. Once the tool is in position, gently angle the outer end of the tool upward until you feel a slight click.
Tip: Little force is needed. Successful contact will be felt at the enter button.
8. Remove the chamber code-change tool and pull the outside paddle once to the stop position and release.
9. Depress the buttons for the new combination, push the ENTER button to activate the new code, and release.
10. Pull the outside paddle to retract the latch and clear the lock.
11. Re-install the tamper-proof screw.
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