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

The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
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