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LiftMaster LA500 Support Question

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Question posted by themink33 on August 24th, 2016

Liftmaster La500 Wont Open Or Close More Than Halfway

I keep getting codes 32 91 and 93

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Answer #1: Posted by mashallah on August 25th, 2016 3:54 AM

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mashallah

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If the door does not open completely but opens at least five feet (1.5 m):
- Increase up travel. Turn the UP limit adjustment screw clockwise. One turn equals 2" (5 cm) of travel.
- NOTE: To prevent the trolley from hitting the cover protection bolt, keep a minimum distance of 2-4" (5 cm - 10 cm) between the trolley and the bolt.
If door does not open at least 5 feet (1.5 m):
- Adjust the UP (open) force as explained in Adjustment Step 2.
If the door does not close completely:
- Increase down travel. Turn the DOWN limit adjustment screw counterclockwise. One turn equals 2" (5 cm) of travel.
- If door still won't close completely and the trolley bumps into the pulley bracket, try lengthening the door arm (page 18) and decreasing the down limit.
If the opener reverses in fully closed position:
- Decrease down travel. Turn the DOWN limit adjustment screw clockwise. One turn equals 2" (5 cm) of travel.
If the door reverses when closing and there is no visible interference to travel cycle:
- If the opener lights are flashing, the Safety Reversing Sensors are either not installed, misaligned, or obstructed. See page 27.
- Test the door for binding: Pull the emergency release handle. Manually open and close the door. If the door is binding or unbalanced, call for a trained door systems technician. If the door is balanced and not binding, adjust the DOWN (close) force. See Adjustment Step 2.

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