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Owner’s Manual
■ Please read this manual and the enclosed safety materials carefully!
■ Fasten the manual near the garage door after installation.
■ The door WILL NOT CLOSE unless The Protector System
®
and cable tension monitor are
connected and properly aligned.
■ Periodic checks of the opener are required to ensure safe operation.
■ The model number label is located behind the hinged door of your opener.
■ Do NOT exceed 10 complete cycles of door operation per hour.
GARAGE DOOR OPENER
Model 3800PLD
For Residential and Light Duty Commercial Use
Install On Sectional Doors With
Torsion Assemblies Only
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com
®
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