Having A Problem - Chamberlain LiftMaster Professional SECURITY+ 3110C 1/3 HP Manuel Du Propriétaire

HAVING A PROBLEM?

1. My door will not close and the light bulbs blink
on my motor unit: The safety reversing sensor
must be connected and aligned correctly before
the garage door opener will move in the down
direction.
• Verify the safety sensors are properly installed,
aligned and free of any obstructions. Refer to
Installation Step 10: Install The Protector
System ® .
• Check diagnostic LED for flashes on the motor
unit then refer to the Diagnostic Chart on the
following page.
2. My remotes will not activate the door:
• Verify your Premium door control is not blinking.
If it is blinking, deactivate the Lock Mode
following the instructions for Using the
Multi-Function Door Control.
• Reprogram remotes following the programming
instructions. Refer to Programming.
• If remote will still not activate your door, check
diagnostic LED for flashes on motor unit then
refer to Diagnostic Chart on the following page.
3. My door reverses for no apparent reason:
Repeat safety reverse test after adjustments to
force or travel limits. The need for occasional
adjustment for the force and limit settings is
normal. Weather conditions in particular can affect
door travel.
• Manually check door for balance or any binding
problems.
• Refer to Adjustment Step 2, Adjust the Force.
4. My door reverses for no apparent reason after
fully closing and touching the floor: Repeat
safety reverse test after adjustments to force or
travel limits. The need for occasional adjustment
for the force and limit settings is normal. Weather
conditions in particular can affect door travel.
• Refer to Adjustment Step 1, Adjust the UP and
DOWN Travel Limits. Decrease down travel by
turning down limit adjustment screw clockwise.
Sending Eye Safety Sensor
(Amber Indicator Light)
5. My lights will not turn off when door is open:
• The garage door opener is equipped with a
security light feature. This feature activates the
light on when the safety sensor beam has been
obstructed. Refer to Operation section; Using the
Wall Mounted Door Control, Light Feature.
29
"Learn"
Button
LED or
Diagnostic
LED
Receiving Eye Safety Sensor
(Green Indicator Light)