Chamberlain 3500D Garage Door Opener User Manual


 
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.
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