Chamberlain 3850PC 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 6-7
Attach the rail to the motor unit . . . . . . . . . . . . . . . . . . . .6
Set the belt tension . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Attach the belt cap retainer . . . . . . . . . . . . . . . . . . . . . . .7
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
Position the opener . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Hang the opener. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Install the door control . . . . . . . . . . . . . . . . . . . . . . . . . .13
Install the StandBy Power (optional) . . . . . . . . . . . . . . .14
Install the lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Attach the emergency release rope and handle . . . . . .15
Electrical requirements. . . . . . . . . . . . . . . . . . . . . . . . . .15
Install the Protector System
®
(Safety Reversing Sensors) . . . . . . . . . . . . . . . . . . . 16-18
Fasten the door bracket . . . . . . . . . . . . . . . . . . . . . . 19-20
Connect door arm to trolley . . . . . . . . . . . . . . . . . . . 21-22
Adjustment 23-25
Program the travel limits . . . . . . . . . . . . . . . . . . . . . . . .23
Setting the force . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
Test the safety reversal system . . . . . . . . . . . . . . . . . . .25
Test the Protector System
®
(Safety Reversing Sensors) . . . . . . . . . . . . . . . . . . . . . .25
Operation 26-33
Operation safety instructions . . . . . . . . . . . . . . . . . . . . . 26
Using your garage door opener . . . . . . . . . . . . . . . . . . . 26
Using the wall-mounted door control . . . . . . . . . . . . . . . 27
Using the remote control . . . . . . . . . . . . . . . . . . . . . . . . 28
StandBy Power (optional). . . . . . . . . . . . . . . . . . . . . . . . 29
To open the door manually. . . . . . . . . . . . . . . . . . . . . . . 30
Care of your garage door opener. . . . . . . . . . . . . . . . . . 30
Having a problem (Troubleshooting) . . . . . . . . . . . . . . . 31
Diagnostic chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Smart Control Panel™ Messages . . . . . . . . . . . . . . . . . 33
Programming 34-35
To add or reprogram a hand-held remote control . . . . . 34
To erase all codes from motor unit memory. . . . . . . . . . 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