The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com
■ Please read this manual and the enclosed safety materials carefully!
■ Fasten the manual near the garage door after installation.
■ The door WILL NOT CLOSE unless the Protector System
®
and cable tension monitor are
connected and properly aligned.
■ Periodic checks of the garage door opener are required to ensure safe operation.
■ The model number label is located behind the hinged door of your opener.
■ DO NOT exceed 10 complete cycles of door operation per hour.
For Residential and Light Duty Commercial Use
Install On Sectional Doors With Torsion
Assemblies Only
®
C
o
m
p
a
t
i
b
l
e
w
i
t
h
S
e
e
P
a
g
e
1
4
f
o
r
D
e
t
a
i
l
s
Model 3800PLD
GARAGE DOOR OPENER
To Next Page
Need help?
General
