Chamberlain LiftMaster 398LM Owner'S Instructions Download Page 4

© 2006, The Chamberlain Group, Inc.

114A3325B

All Rights Reserved

Meaning: This message will appear if the Safety Reversing Sensors are out of
alignment, if they are blocked or if the wiring is disconnected. To clear message from
Control Console do the following:

• Check to see that area is clear between the Safety Reversing Sensors.
• Check to see that the Safety Reversing Sensors are not misaligned.

• Realign receiving eye sensor, clean lens and secure brackets.

• Verify door track is firmly secured to wall and does not move. 

• Check to see that the Safety Reversing Sensors’ wires are connected to the motor unit.

• If message has not cleared after the above checks, refer to message #2.

Meaning: This message will appear if the Safety Reversing Sensors are miswired.
To clear the message, do the following:

• Inspect the safety sensor wires for a short (staple in wire), correct wiring polarity

(black/white wires reversed), replace/attach as needed.

• Disconnect all wires from back of motor unit.

• Remove safety sensors from brackets and shorten sensor wires to 1-2 ft. (30-60 cm) from

back of each sensor.

• Reattach sending eye to motor unit using shortened wires. If sending eye indicator light

glows steadily, attach the receiving eye.

• Align sensors, if the indicator lights glow replace the wires for the sensors. If the sensor

indicator lights do not light, replace the safety sensors.

Meaning: This message will appear when the Prog <LEARN> button has been
pressed on the Control Console. Pressing the Prog <LEARN> button again will allow
the user to program an additional remote control to the opener.

Meaning: This message will appear when the Prog <learn> button has been pressed a
second time on the Control Console or anytime on the opener. The opener is ready to
program another remote control by simply pressing the remote control button. Once
the opener has ‘LEARNED’ the remote control, the worklight will blink one time. 

Meaning: This message will appear when the ‘Lock’ button has been pressed and
held for more than one second. This feature will disable the opener from receiving
remote control signals. To exit ‘LOCK’ mode, press and hold the button for more than
one second.

Meaning: This message will appear when the ‘Language’ button has been pressed.
Pressing the button will toggle to the next language.

Meaning: This message will appear when the ‘MOTION SENSING’ button is pressed.
The Motion Detector will toggle on or off with each press of the button.

LEARN REMOTE
CONTROL. PRESS
LEARN BUTTON TO
CONFIRM.

LEARN MODE.
PRESS REMOTE
CONTROL BUTTON
TO PROGRAM
REMOTE.

LOCK MODE.
REMOTE CONTROL
LOCKED OUT.
PRESS LOCK
BUTTON TO ENABLE
REMOTE.

SAFETY SENSORS
MALFUNCTION.
CHECK MISWIRING.
SEE OWNER’S
MANUAL.

Message

Message

Message

Message

Message

ENGLISH, FRANÇAIS
AND ESPAÑOL.

Message

MOTION SENSING
ON, MOTION
SENSING OFF.

Message

LCD Motion Detecting Control Console Messages

The following messages are contained within the LCD Motion Detecting Control Console and may appear during the
operations of the unit:

SAFETY SENSORS
CHECK ALIGNMENT,
BLOCKAGE OR
MISWIRING. SEE
OWNER’S MANUAL.

Summary of Contents for LiftMaster 398LM

Page 1: ...ing plastic housing Do NOT overtighten Replace cover by inserting top tabs first and then snap cover in place 4 For standard installations ONLY Run bell wire up wall and across ceiling to motor unit Use insulated staples to secure wire in several places Do NOT pierce wire with a staple creating a short or open circuit 5 Strip 7 16 11 mm of insulation from end of bell wire Connect bell wire to the ...

Page 2: ...ll come on for five minutes then shut off This feature works by detecting body heat To disable this feature push the motion sensing button on the side of the door control 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 sensors range Motion Sensing On Off Prog Learn Hour Minute La...

Page 3: ...e door 4 When the motor unit lights blink it has learned the code If light bulbs are not installed two clicks will be heard To Add or Reprogram a Remote Control NOTE This method requires two people if the Keyless Entry is already mounted outside the garage LOCK LIGHT TO ADD ADDITIONAL REMOTE CONTROLS USING THE LCD CONTROL CONSOLE USING THE LCD CONTROL CONSOLE LOCK LIGHT LOCK LIGHT LOCK LIGHT To Er...

Page 4: ...as been pressed on the Control Console Pressing the Prog LEARN button again will allow the user to program an additional remote control to the opener Meaning This message will appear when the Prog learn button has been pressed a second time on the Control Console or anytime on the opener The opener is ready to program another remote control by simply pressing the remote control button Once the ope...

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