LIFTMASTER model 3240 residential opener is a 1/2hp screw 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 315. The rail is style is Solid T.
The warranty on the garage door opener is Lifetime on the motor and 1 year on the remaining opener parts from LIFTMASTER.
The model 3240 is discontinued.
LIFTMASTER model 3240 residential opener owners manual and instructions in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
(3.77 MB in English) This requires Acrobat 10 or higher