The Chamberlain Group, Inc.

845 Larch Avenue

Elmhurst, Illinois 60126-1196

www.liftmaster.com

®

GARAGE DOOR OPENER

Models

3130M 1/3 HP

3240M 1/2 HP

For Residential Use Only

 

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® is connected and properly aligned.

■Periodic checks of the opener are required to ensure safe operation.

■The model number label is located on the front panel of your opener.