LIFTMASTER model 1240R residential opener is a 1/4hp chain drive. It is part of the premium series. This garage door opener has an ac motor on 110vac. A battery backup is not available. The remotes are rolling code on 390. The rail is style is Solid T.
The warranty on the garage door opener is 1 year on the motor and 1 year on the remaining opener parts from LIFTMASTER.
The model 1240R is discontinued.
LIFTMASTER model 1240R residential opener owners manual and instructions in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
(1.26 MB in English) This requires Acrobat 10 or higher