Chamberlain 98LM - Manual (Page 2)

OPERATION
Door Control Push Bar: Press to open or close the door.
Press again to reverse the door during the closing cycle, or
to stop the door while it is opening.
Light Feature: Press the Light button to switch the opener
light on or off. When the door is opened or closed, the light
will remain on for 4-1/2 minutes. Press the Light button to
turn it off sooner. The Light button will not control the
opener light when the door is in motion. When using the
opener lights as working lights, we recommend that you
first disable the motion sensor. See Automatic Light
Override Feature, below.
When used with openers manufactured after
December 1, 1999, (check the date on the opener panel)
the 4-1/2 minute interval can be changed to 1-1/2, 2-1/2, or
3-1/2 minutes as follows: Press and hold the Lock button
until the light blinks (about 10 seconds). A single blink
indicates that the timer is reset to 1-1/2 minutes. Repeat
the procedure and the light will blink twice, resetting the
timer to 2-1/2 minutes. Repeat again for a 3-1/2 minute
interval, etc., up to a maximum of four blinks and 4-1/2
minutes.
Automatic Light Feature: The opener light will turn on
automatically when a person enters the garage. When a
person walks in front of the door control, the opener light
will come on for five minutes, then shut off. This feature
works by detecting body heat. It is more sensitive in front
of the door control than at its sides, and works better as a
person moves closer. It may not work in temperatures
around 100˚F (38˚C).
To disable this feature, slide the Detector Switch on the
right side of the door control down (off).
Special note for older garage door openers: If this door
control is installed on an opener manufactured from
January 1, 1995 to December 1, 1999, the following
difference may apply: If the light is on when the opener is
actuated, the light may go off for a moment, then turn on
again as the detector senses you.
Automatic Light Override Feature: We recommend that
you disable the motion sensor when using the opener
lights as working lights. Otherwise, they will turn off
automatically if you are working beyond the sensor’s
range. Slide the Detector Switch on the right side of the
door control down (off), then press the light button to
control the lights.
© 2007, The Chamberlain Group, Inc.
114A2396E All Rights Reserved
Lock Feature: Designed to prevent operation of the door
from portable remote controls. However, the door will open
and close from the Door Control push bar and from the
Keylock and Keyless Entry accessories.
To activate: Press and hold the Lock button for 2 seconds.
The push button indicator light will flash as long as the lock
is on.
To turn off: Press and hold the Lock button again for
2 seconds. The indicator light will stop flashing. Normal
operation will resume. The Lock feature will also turn off
whenever the Smart button on the opener end panel is
activated.
FOR SERVICE DIAL OUR TOLL FREE NUMBER:
1-800-528-9131
NOTICE: To comply with FCC and or Industry Canada (IC) rules, 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.