Chamberlain LiftMaster PROFESSIONAL SECURITY+ 2500DC Manuel D'instructions page 32

To Add, Reprogram or Change a Keyless Entry PIN
NOTE: Your new Keyless Entry must be programmed to operate your garage door opener.
USING THE "LEARN" BUTTON
1. Press and release the orange
"learn" button on motor unit. The
learn indicator light will glow
steadily for 30 seconds.
2. Within 30 seconds, enter a four
digit personal identification
number (PIN) of your choice on
the keypad. Then press and hold
the ENTER button.
3. Release the button when the
motor unit lights blink. It has
learned the code. If light bulbs are
not installed, two clicks will be
heard.
To change an existing, known PIN
If the existing PIN is known, it may be changed by one
person without using a ladder.
1. Press the four buttons for the present PIN, then
press and hold the # button.
The opener light will blink twice. Release the #
button.
2. Press the new 4-digit PIN you have chosen, then
press Enter.
The motor unit lights will blink once when the PIN has
been learned.
Test by pressing the new PIN, then press Enter. The
door should move.
To set a temporary PIN
You may authorize access by visitors or service people
with a temporary 4-digit PIN. After a programmed
number of hours or number of accesses, this temporary
PIN expires and will no longer open the door. It can be
used to close the door even after it has expired. To set
a temporary PIN:
1. Press the four buttons for your personal entry PIN
(not the last temporary PIN), then press and hold the
✽ button.
The opener light will blink three times. Release the
button.
USING THE MOTION DETECTING
CONTROL PANEL
NOTE: This method requires two people if the Keyless
Entry is already mounted outside the garage.
1. Enter a four digit personal
identification number (PIN) of your
choice on the keypad. Then press
and hold ENTER.
2. While holding the ENTER button,
press and hold the LIGHT button
on the Motion Detecting Control
Panel.
3. Continue holding the ENTER and
LIGHT buttons while you press
the push bar on the Motion
Detecting Control Panel (all three
buttons are held).
4. Release buttons when the motor
unit lights blink. It has learned the
code. If light bulbs are not
installed, two clicks will be heard.
2. Press the temporary 4-digit PIN you have chosen,
then press Enter.
The opener light will blink four times.
3. To set the number of hours this temporary PIN will
work, press the number of hours (up to 255), then
press ✽.
3. To set the number of times this temporary PIN will
work, press the number of times (up to 255), then
press #.
The opener light will blink once when the temporary PIN
has been learned.
Test by pressing the four buttons for the temporary PIN,
then press Enter. The door should move. If the
temporary PIN was set to a certain number of openings,
remember that the test has used up one opening.To
clear the temporary password, repeat steps 1-3, setting
the number of hours or times to 0 in step 3.
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