Chamberlain 1240R - 1/4HP Garage Door Opener User Manual


 
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com
GARAGE DOOR OPENER
Model Series 1200
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.
®
Model 1256R - 1/2HP
Model 1246R - 1/3HP
Model 1255R - 1/2HP
Model 1245R - 1/3HP
Model 1240R - 1/4HP