OVERHEAD model SILENTMAX 4040 residential opener is a 1/2hp belt drive. It is part of the value. This garage door opener has an dc motor on 110vac. A battery backup is not available. The remotes are rolling code on Intellicode. The rail is style is Solid Channel.
The warranty on the garage door opener is Lifetime on the motor and 5 years on the remaining opener parts from OVERHEAD.
The model SILENTMAX 4040 is still available.
OVERHEAD model SILENTMAX 4040 residential opener owners manual and instructions in PDF format at NO CHARGE!
VIEW / DOWNLOAD by clicking HERE
overhead_silentmax_4040_om.pdf
(3.18 MB in English) This requires Acrobat 10 or higher