Changing the Code/Combination
Simplex LP1000/8100
LP1000/8100 Series FAQ
Changing the Code/Combination
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.
For your security the combination must be changed when the lock is in-
stalled. The door must be open.
On models with passage feature, make sure the passage feature is disengaged:
turn knob or key should be in vertical position.
1. Remove the tamper proof allen screw (A) using (B) tamper proof allen
wrench supplied with lock (see gure 1).
2. Turn the outside lever once to the stop position then release
(see gure 3).
3. Enter the existing combination. On new installations, enter the factory-
set combination: depress buttons 2 and 4 simultaneously (release) , then
depress button 3 (release). You should feel a click as each button
is depressed.
4. Insert the pick tool (C) as shown in gure 2. Gently depress pick tool in
hole (a slight click should be felt), then remove the pick tool.
5. Turn the outside lever once to the stop position then release
(see gure 3).
6. Select a new combination, write it down, then enter the new
combination—depress buttons carefully (a slight click should be felt as
each button is depressed)
Note: You can use one button or all ve for a combination, but each button can
only be used once. You can press two or more buttons simultaneously as a step
in the combination.
7. Turn the outside lever once, all the way until it stops, hold in position
and make sure the latch is retracted fully. Release the lever. Turn the
lever again to the stop position. At this point, the latch should not
retract unless you enter the new combination (see gure 3).
