Havinga Problem - Craftsman 139.53919 Owner's Manual

HAVING A PROBLEM?
NOTE: Always unplug BBU prior to troubleshooting
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
Systen'P.
• 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 Motion Detecting Control Console is
not blinking. If it is blinking, deactivate the Lock
Mode following the instructions for Using the
Motion Detecting Control Console.
• 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. The door reverses for no apparent reason and
opener lights don't blink:
• Is something obstructing the door? Pull the
emergency release handle. Operate the door
manually. If it is unbalanced or binding, call a
trained door systems technician.
• Clear any ice or snow from the garage floor area
where the door closes.
• Review Adjustment Step 2.
Repeat safety reverse test after adjustments.
4. The door reverses for no apparent reason and
opener lights blink for 5 seconds after
reversing:
• Check the safety reversing sensor. Remove any
obstruction or align the receiving eye. See
Installation Step 10.
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.
\
Safety Sensor
Sending Eye Safety Sensor Receiving Eye Safety Sensor
(Amber Indicator Light) (Green Indicator Light)
6. My motor unit hums briefly:
• First verify that the trolley is against the stop bolt.
• Release the door from the opener by pulling the
Emergency Release Rope.
• Manually bring the door to a closed position.
• Loosen the belt by adjusting the outer nut 4 to 5
turns. This relieves the tension.
• Run the motor unit from the remote control or
door control. The trolley should travel towards
the door and stop. If the trolley re-engages with
the door, pull the Emergency Release Rope to
disengage.
_1_ 1-1/4"
(3.18 cm)
• Re-Tighten the outer nut until the trolley spring is
approximately 1-1/4" (3.18 cm) in length.
• If the trolley does not move away from the bolt,
repeat the steps above.
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