Chamberlain 3840 Garage Door Opener User Manual


 
2
Introduction 2-5
Safety symbol and signal word review. . . . . . . . . . . . . . . 2
Preparing your garage door . . . . . . . . . . . . . . . . . . . . . . . 3
Tools needed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Carton inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Hardware inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Assembly 6
Fasten rail to the motor unit . . . . . . . . . . . . . . . . . . . . . . . 6
Installation 7-22
Installation safety instructions . . . . . . . . . . . . . . . . . . . . . 7
Determine the header bracket location . . . . . . . . . . . . . . 8
Install the header bracket. . . . . . . . . . . . . . . . . . . . . . . . . 9
Attach the rail to the header bracket . . . . . . . . . . . . . . . 10
Install the Protector System
®
. . . . . . . . . . . . . . . . . . 11-13
Position the opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Hang the opener. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Install the Smart Control Panel
®
. . . . . . . . . . . . . . . . . . . 16
Install the Standby Power (Optional) . . . . . . . . . . . . . . . 17
Install the lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Attach the emergency release rope and handle . . . . . . 17
Electrical requirements. . . . . . . . . . . . . . . . . . . . . . . . . . 18
Complete safety reversing sensor installation . . . . . . . . 18
Fasten the door bracket . . . . . . . . . . . . . . . . . . . . . . . . . 19
Connect the door arm to the trolley . . . . . . . . . . . . . 21-22
Adjustment 23-25
Program the travel limits . . . . . . . . . . . . . . . . . . . . . . . . 23
Set the force. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Test the safety reversal system . . . . . . . . . . . . . . . . . . . 25
Test the Protector System
®
. . . . . . . . . . . . . . . . . . . . . . 25
Operation 26-33
Operation safety instructions . . . . . . . . . . . . . . . . . . . . . 26
Using your garage door opener . . . . . . . . . . . . . . . . . . . 26
Using the Smart Control Panel
®
. . . . . . . . . . . . . . . . . . . 27
Using the remote control . . . . . . . . . . . . . . . . . . . . . . . . 28
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
To open the door manually . . . . . . . . . . . . . . . . . . . . . . 28
Care of your garage door opener. . . . . . . . . . . . . . . . . . 28
Using the remote control . . . . . . . . . . . . . . . . . . . . . . . . 29
The remote control battery . . . . . . . . . . . . . . . . . . . . . . . 29
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Standby Power (Optional) . . . . . . . . . . . . . . . . . . . . . . . 30
Having a problem? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Diagnostic chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-33
Programming 34-35
To add or reprogram a hand-held remote control . . . . . 34
To erase all codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3-Button remotes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
To add, reprogram or change
a Keyless Entry PIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Repair Parts 36-37
Rail assembly parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Installation parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Motor unit assembly parts . . . . . . . . . . . . . . . . . . . . . . . 37
Accessories 38
Notes 39
Repair Parts and Service 40
Warranty 40
TABLE OF CONTENTS
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.
INTRODUCTION
Safety Symbol
and Signal Word Review
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