Chamberlain Merlin Whisper Drive MT3850EVO Installation And Operating Instructions Manual page 24

WIRELESS PROGRAMMING
KEYLESS DEVICE PROGRAMMING
Activate the opener only when door is in full view, free of
obstruction and properly adjusted. No one should enter or leave
garage while door is in motion. Do not allow children to operate
push button(s) or remote(s). Do not allow children to play near the
door.
Wireless Keypad E840M
To set the keyless entry PIN:
1.Locate the Yellow Learn button on the garage door
opener.
2.Press and release the Yellow Learn button on the
garage door opener.
3.Enter a 4-digit personal identification number (PIN) of
your choice.
4.Press and release the ENTER button. Check to see if
the bulb blinks. If not, slowly press and release the
ENTER button until the light bulb blinks.
To change an existing keyless entry PIN:
1.Enter the existing programmed PIN that you want to
change.
2.Press and hold the # button until the light bulb blinks
twice.
3.Enter the new 4-digit PIN of your choice, then press
the ENTER button. The light bulb will blink once.
4.To test, enter the new PIN, then press the ENTER
button. The garage door opener will activate.
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Locate
the yellow
learn button
Press and
release
the yellow
learn button
Enter a 4-digit
PIN of your
choice
? ? ? ?
_ _ _ _
Press and release
the enter button
Light bulb blinks