Chamberlain LiftMaster Security+ 372LM Owner's Manual

Model 372LM and 372LMC Security
The 372LM and 372LMC remote control can activate two
separate 315MHz residential or commercial garage door
openers and/or gate openers. The instructions for
programming garage door openers are illustrated below.
Please refer to the original receiver programming for
commercial and gate products.
Both push buttons are factory programmed to work with
315MHz Security ® receivers having a purple "learn"
button. The rolling code between these buttons and the
receiver changes with each use, randomly accessing over
100 billion new codes.
As an added feature, the push button on the right is
capable of learning or being trained to duplicate or match
another CGI manufactured fixed code or billion-code
remote. This feature is normally used when several
remotes are required to operate one fixed code device
such as a gate opener or commercial dock door. In this
case, the code transmitted to the receiver remains
constant or fixed, not using the Security
NOTE: The push button on the left cannot be changed
from Security ® , only the right button is trainable.
1 2 3
KG KG
® format.
Instructions are described and illustrated below.
1
1

To Erase All Codes From Motor Unit Memory

To deactivate any unwanted remote, first erase all codes:
Press and the hold "learn" button on motor unit until the learn indicator light goes out
(approximately 6 seconds). All previous codes are now erased. Reprogram each remote or
keyless entry you wish to use.
® 2-Button Remote Control
To prevent possible SERIOUS INJURY or DEATH from a
moving gate or garage door:
• ALWAYS keep remote controls out of reach of children.
NEVER permit children to operate, or play with remote
control transmitters.
• Activate gate or door ONLY when it can be seen clearly, is
properly adjusted, and there are no obstructions to door
travel.
• ALWAYS keep gate or garage door in sight until completely
closed. NEVER permit anyone to cross path of moving gate
or door.
NOTICE: To comply with FCC and or Industry Canada rules (IC), adjustment or modifications of this
receiver and/or transmitter are prohibited, except for changing the code setting or replacing the
battery. THERE ARE NO OTHER USER SERVICEABLE PARTS.
Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired operation.
Figure 1
1.Press and release the "learn" button
on the motor unit. The learn
indicator light will glow steadily for
2 3
9 1 9 1
7 3 7 3
5 5
KG KG
30 seconds.
2. Within 30 seconds, press and hold
2
the button on the hand-held remote
that you wish to operate your
garage door.
3. Release the button when the motor
unit light blink. It has learned the
code. If light bulbs are not installed,
two clicks will be heard.

WARNING

CAUTION
Right
Push Button
(Multi-use)
1 2 3
KG
KG