Chamberlain HD400D Garage Door Opener User Manual


 
The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.chamberlain.com
GARAGE DOOR OPENER
OWNER’S MANUAL
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
®
is connected and properly aligned.
Periodic checks of the opener are required to ensure safe operation.
The model number label is located under the light lens on the front panel of your opener.
PD210D • PD212D • LW2000
HD200D • 248730
PD610D • PD612D • HD400D • LW3000
There are two types of garage door openers pictured. Yours may appear slightly different.
When you see these Safety Symbols and Signal Words on
the following pages, they will alert you to the possibility
of serious injury or death if you do not comply with the
warnings that accompany them. The hazard may come
from something mechanical or from electric shock. Read
the warnings carefully.
When you see this Signal Word on the following pages, it
will alert you to the possibility of damage to your garage
door and/or the garage door opener if you do not comply
with the cautionary statements that accompany it. Read
them carefully.
This garage door opener has been designed and tested to offer safe service provided it is installed, operated, maintained
and tested in strict accordance with the instructions and warnings contained in this manual.
Mechanical
Electrical
IMPORTANT SAFETY NOTES