Chamberlain LiftMaster Professional 33LM Owner's Manual

MODEL 33LM 3-BUTTON REMOTE CONTROL TRANSMITTER
The green push button is recommended for use with a
garage door opener. The other push buttons can be
used to operate another opener and/or light control
product.
The 33LM 3-Button Remote Control Transmitter can
also be used with a 423LM 3-channel receiver and a
3-button door control to operate a commercial door
opener in open, close, and stop mode (as explained on
side 2).
To match or change the code in the
transmitter
Locate the code switches in both the new and the original
transmitters. The new transmitter's code switches can be
found by sliding the battery compartment cover back.
Place transmitters side by side as shown (Figure 1) and
set switches in all transmitters to matching positions
(+,0,–). Use a pen or screwdriver to slide the code
switches.
Figure 1
Match code switches (2-9)
between old transmitter and
new transmitter (Code switch
#1 on the 3-button remote
control is dormant)
NOTE: Code switch #1 on
the 3-button transmitter is
dormant, when used with
a single-button
transmitter. Set code
switch #1, in the
single-button transmitter,
to match the push button
selected on the 3-button
transmitter (Figure 2).
Replacement Parts
Remote case housing
(circuit board not included) . . . . . . . . . . . . . .41A3580-4
Visor clip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29C128
12V battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10A14
OWNER'S MANUAL
Figure 2
(+) (0) (–)
Push Buttons
WARNING
To prevent possible SERIOUS INJURY or DEATH from a
moving gate or garage door:
CAUTION
• 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
AVERTISSEMENT
or door.
Programming the opener
ATTENTION
If your unit has a "Learn" button:
1. Press and release the "learn" button
located on the back panel of the motor
unit. The learn indicator light will glow
steadily for 30 seconds.
2. Within the 30 second window, press and
hold the button on the hand-held remote.
3. The unit will either activate or the opener
light bulb will blink signifying it has
learned the code.
If your unit has code switches:
1. Using a step ladder climb up to the back
of your motor unit. Check the code
switch settings on the back of the motor
unit.
2. Use a pen or screw driver to set the
code switches on the back of the
transmitter to match the code switches
on the back of the motor unit.
3. Once the code switches have been set push the
transmitter button to activate your unit.
1
RED-1 WHT-2
+
H
I
0
G
H
– N
O R M
1 2 3 4 5 6 7 8 9
O R
RED-1 WHT-2
H
I
G
H
N
O R M
H
I
G
H
N
O R
+
H
I
0
G
H
–
1 2 3 4 5 6 7 8 9
+
0
—
1 2 3 4 5 6 7 8 9