CRAFTSMAN / SEARS model 139.53990 residential opener is a 3/4hp chain/cable drive. It is part of the value. 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 Split Square.
The warranty on the garage door opener is Lifetime on the motor and 5 years on the remaining opener parts from CRAFTSMAN / SEARS.
The model 139.53990 is discontinued.
CRAFTSMAN / SEARS model 139.53990 residential opener owners manual and instructions in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
craftsman_139_53990_om.pdf
(4.22 MB in English) This requires Acrobat 10 or higher