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LIFTMASTER model 3800 residential opener is a 3/4hps jackshaft drive. It is part of the elite series. This garage door opener has an dc motor on 110vac. A battery backup is optional. The remotes are rolling code on 315. The rail is style is None.

The warranty on the garage door opener is Lifetime on the motor and 5 years on the remaining opener parts from LIFTMASTER.

The model 3800 is discontinued.

LIFTMASTER model 3800 residential opener owners manual and instructions in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
liftmaster_3800_om.pdf

(2.98 MB in English) This requires Acrobat 10 or higher