The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com
GARAGE DOOR OPENER
Model 1255LMCR-2 1/2HP
For Residential Use Only
®
Owner’s Manual
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Please read this manual and the enclosed safety materials carefully!
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Fasten the manual near the garage door after installation.
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The door WILL NOT CLOSE unless the Protector System
®
is connected and
properly aligned.
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Periodic checks of the opener are required to ensure safe operation.
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The model number label is located on the front panel of your opener.
®
