Chamberlain 81600 User manual

Wi-Fi®Garage Door Openers
Chain Drive Models - 81600, 81602, 81640, 81650, 83650-267
Belt Drive Model - 81550
FOR RESIDENTIAL USE ONLY •Please read this manual and the safety materials carefully!
•The door WILL NOT CLOSE unless the Protector System®is
connected and properly aligned.
•Periodic checks of the garage door opener are required to
ensure safe operation.
•This garage door opener is ONLY compatible with myQ®and
Security+ 2.0®accessories.
•DO NOT install on a one-piece door if using devices or
features providing unattended close. Unattended devices and
features are to be used ONLY with sectional doors.
•Attach warning labels to the location indicated on label.
LiftMaster
300 Windsor Drive
Oak Brook, IL 60523

2
Table of Contents
Preparation 3
Carton Inventory: Models 81600, 81602, 81640, 81650, and 83650-267 6
Carton Inventory: Model 81550 7
Assembly 8
Models 81600, 81602, 81640*, 81650, and 83650-267 8
Model 81550 9
Installation 10
Install the Door Control 19
Install the Protector System 22
Power 26
Adjustments 29
Battery Backup 32
Operation 34
Maintenance 42
Troubleshooting 43
Accessories 45
Warranty 46
Automatic Garage Door Opener Safety & Maintenance Guide 47
Repair Parts 49
Models 81600, 81602, 81640, 81650, and 83650-267 49
Models 81600 and 81602 50
Models 81640 and 81650 51
Model 83650-267 52
Model 81550 53
Model 81550 54

3
Preparation
myQ®Serial Number
Write down the following information for future reference:
myQ®Serial Number:
Serial Number
myQ®Serial Number
Product Serial Number:
Date of Purchase:
/ /
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.
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.
Mechanical
Electrical
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.
WARNING: This product can expose you to chemicals including lead, which are known to
the State of California to cause cancer or birth defects or other reproductive harm. For
more information go to www.P65Warnings.ca.gov

4
Preparation
Before You Connect with Your Smartphone
Monitor and control your garage door from anywhere using the myQ® App.
You will need:
•Wi-Fi® enabled smartphone, tablet or laptop
•Broadband Internet Connection
•Wi-Fi® signal in the garage (2.4 GHz, 802.11b/g/n required)
•Password for your home network (router's main account, not guest network)
TEST THE WI-FI® SIGNAL STRENGTH
Make sure your mobile device is connected to your Wi-Fi® network. Hold your mobile device in the
place where your garage door opener will be installed and check the Wi-Fi® signal strength.
Check Signal Strength. If you see:
Wi-Fi signal is strong.
The garage door opener will
connect to your Wi-Fi network.
Wi-Fi signal is weak.
The garage door opener may connect to your
Wi-Fi network. If not, try one of the options
below to improve the Wi-Fi signal:
No Wi-Fi signal.
The garage door opener will not be able to
connect to your Wi-Fi network. Try one of the
options below to improve the Wi-Fi signal:
• Move your router closer to the garage door opener to minimize
interference from walls and other objects
• Buy a Wi-Fi range extender
Visit support.chamberlaingroup.com for more details.
For compatible router specifications and help, visit WiFiHelp.LiftMaster.com.
See page 36 to connect the garage door opener to a mobile device.
Check the Door
To prevent possible SERIOUSINJURYor DEATH:
•ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of
balance. An unbalanced garage door may NOT reverse when required.
•NEVER try to loosen, move or adjust garage door, door springs, cables, pulleys, brackets
or their hardware, ALLof which are under EXTREME tension.
•Disable ALLlocks and remove ALLropes connected to garage door BEFORE installation
and operating garage door opener to avoid entanglement.
•DO NOT install on a one-piece door if using devices or features providing unattended
close. Unattended devices and features are to be used ONLY with sectional doors.
To prevent damage to garage door and opener:
•ALWAYS disable locks BEFORE installing and operating the opener.
•ONLY operate garage door opener at 120V, 60Hz to avoid malfunction and damage.
Before you begin:
1. Disable locks and remove any ropes connected to the garage door.
2. Lift the door halfway up. Release the door. If balanced, it should stay in
place, supported entirely by its springs.
3. Raise and lower the door to check for binding or sticking. If your door
binds, sticks, or is out of balance, call a trained door systems technician.
4. Check the seal on the bottom of the door. Any gap between the floor and
the bottom of the door must not exceed 1/4" (6 mm). Otherwise, the
safety reversal system may not work properly.
5. The opener should be installed above the center of the door. If there is a
torsion spring or center bearing plate in the way of the header bracket, it
may be installed within 4feet (1.2 m) to the left or right of the door
center. See page 11.
Torsion
Spring
Extension
Spring
OR

5
Preparation
Tools Needed
3/16
5/32
5/16
7/16
1/2
5/8
9/16
1/4
7/16

6
Preparation
Carton Inventory: Models 81600, 81602, 81640, 81650, and
83650-267
Accessories will vary depending on the garage door opener model purchased. Depending on your
specific model, other accessories may be included with your garage door opener. The instructions
for these accessories will be attached to the accessory and are not included in this manual. The
images throughout this manual are for reference and your product may look different.
For Square Rail see instructions included with the rail kit model LMSSRKIT.
A. Header bracket
B. Pulley and bracket
C. Door bracket
D. Curved door arm
E. Straight door arm
F. Trolley
G. Emergency release rope and handle
H. Rail
I. Garage door opener
J. Sprocket cover
K. Chain
L. Door control
M. White and red/white wire
N. The Protector System®
Safety reversing sensors with white and white/black wire attached: Sending Sensor (1)
Receiving Sensor (1) and Safety Sensor Brackets (2)
O. Safety labels and literature
P. Rail grease
Q. Battery Backup (Model 81602 only)
SECURITY+ 2.0®ACCESSORIES
882LMW
Multi-Function Door Control
Models: 81600, 81602, 81650, 83650-267
883LMW
Push Button Door Control
Model: 81640
893LM
Remote Control
Models: 81600, 81602, 81650, 83650-267
891LM
Remote Control
Model: 81640
HARDWARE
Installation Door Control Hardware
Hex bolt 5/16"-18 x 7/8" (4) Screw 6AB x 1" (2)
Lag screw 5/16"-9 x 1-5/8" (2) Screw 6-32 x 1" (2)
Clevis Pin 5/16" x 2-3/4" (1) Drywall anchors (2)
Clevis Pin 5/16" x 1-1/4" (1)
Clevis Pin 5/16" x 1" (1)
Nut 5/16"-18 (4)
Lock washer 5/16" (4)
Self-threading screw 1/4"-14 x 5/8" (2)
Ring fastener (3)
Carriage bolt 1/4"-20 x 1/2" (2)
Wing nut 1/4"-20 (2)
AB
C
J
N
I
O
D
E
F
H
G
K
L
M
Not Provided
Not
Provided
P
Q

7
Preparation
Carton Inventory: Model 81550
Accessories will vary depending on the garage door opener model purchased. Depending on your
specific model, other accessories may be included with your garage door opener. The instructions
for these accessories will be attached to the accessory and are not included in this manual. The
images throughout this manual are for reference and your product may look different.
A. Header bracket
B. Pulley and bracket
C. Door bracket
D. Curved door arm
E. Straight door arm
F. Trolley
G. Emergency release rope and handle
H. Rail
I. Garage door opener
J. Sprocket cover with hex screws
K. Belt
L. Door control
M. White and red/white wire
N. The Protector System®
Safety reversing sensors with white and white/black wire attached: Sending Sensor (1)
Receiving Sensor (1) and Safety Sensor Brackets (2)
O. Safety labels and literature
P. Rail grease
SECURITY+ 2.0®ACCESSORIES
882LMW
Multi-Function Door Control
893LM
Remote Control
INSTALLATION HARDWARE
Hex bolt 5/16"-18 x 7/8" (4) Lock washer 5/16" (4)
Lag screw 5/16"-9 x 1-5/8" (2) Self-threading screw 1/4"-14 x 5/8" (2)
Clevis Pin 5/16" x 2-3/4" (1) Ring fastener (3)
Clevis Pin 5/16" x 1-1/4" (1) Carriage bolt 1/4"-20 x 1/2" (2)
Clevis Pin 5/16" x 1" (1) Wing nut 1/4"-20 (2)
Nut 5/16"-18 (4)
DOOR CONTROL HARDWARE
Screw 6AB x 1" (2)
Screw 6-32 x 1" (2)
Drywall anchors (2)
AB
C
J
N
I
OP
DE
F
H
GK
L
M
Not Provided
Not
Provided

8
Assembly
1 Attach the Rail to the Garage Door Opener
Models 81600, 81602, 81640*, 81650, and 83650-267
* Can be installed with a T-Rail or a Square Rail. For Square Rail assembly steps, see instructions
provided with the rail kit model LMSSRKIT. Once completed, return to this manual for the installation
instructions.
To avoid possible SERIOUS INJURY to finger from moving garage door opener:
•ALWAYS keep hand clear of sprocket while operating opener.
•Securely attach sprocket cover BEFORE operating.
To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in
the top of the opener.
NOTE: ONLY use the bolts removed from the garage door opener. Place the garage door opener on
the packing material to prevent scratching.
1. Remove the two bolts from the top of the garage door opener.
2. Align the rail and the styrofoam over the sprocket. Cut the tape from the rail, chain, and
styrofoam.
3. Fasten the rail with the previously removed bolts.
4. Position the chain around the garage door opener sprocket.
5. Models 81600 and 81602: Attach the sprocket cover over the garage door opener sprocket
and attach with hex screws.
Models 81640, 81650, and 83650-267: Install the sprocket cover by squeezing the sides
and inserting the tabs into the slots on the garage door opener.
Washered Bolt
5/16"-18x1/2" Hex Screw
#8x3/8"
Washered Bolt 5/16"-18 x 1/2"
(Mounted in the garage door opener)
Models 81600 and 81602 Models 81640, 81650, and 83650-267
2 Tighten the Chain
1. Loosen the inner nut and lock washer on the trolley threaded shaft.
2. Tighten the outer nut until the chain is a 1/2" above the base of the rail at the midpoint
oftherail.
3. Re-tighten the inner nut.
Slack in the chain is normal when the door is closed. No readjustment is necessary.
Sprocket noise can result if the chain is too loose. During future maintenance, ALWAYS pull the
emergency release handle to disconnect the trolley before adjusting the chain.
1/2" (13 mm)

9
Assembly
1 Attach the Rail to the Garage Door Opener
Model 81550
To avoid possible SERIOUS INJURY to finger from moving garage door opener:
•ALWAYS keep hand clear of sprocket while operating opener.
•Securely attach sprocket cover BEFORE operating.
To avoid SERIOUS damage to garage door opener, use ONLY those bolts/fasteners mounted in
the top of the opener.
NOTE: ONLY use the bolts removed from the garage door opener. Place the garage door opener on
the packing material to prevent scratching.
1. Remove the two bolts from the top of the garage door opener.
2. Align the rail and the Styrofoam over the sprocket. Cut the tape from the rail, chain, and
Styrofoam.
3. Fasten the rail with the previously removed bolts.
4. Position the chain around the garage door opener sprocket.
5. Install the sprocket cover by squeezing the sides and inserting the tabs into the slots on the
garage door opener.
Washered Bolt 5/16"-18 x 1/2"
(Mounted in the garage door opener)
2 Tighten the Belt
1. By hand, thread the spring trolley nut on the threaded shaft until it is finger tight against the
trolley. Do not use any tools.
2. Insert a flathead screwdriver tip into one of the nut ring slots and brace it firmly against the
trolley.
3. Tighten the spring trolley nut with an adjustable wrench or a 7/16" open end wrench about a
quarter turn until the spring releases and snaps the nut ring against the trolley. This sets the
spring to optimum belt tension.
Spring Trolley Nut
(To motor unit)
Nut ring
slot
Nut Ring Nut Ring
AFTER RELEASE
1-1/4"
(3.18 cm)
BEFORE
1"
(2.5 cm)
1
2
3

10
Installation
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
1. READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS.
2. Install garage door opener ONLY on properly balanced and lubricated garage door. An
improperly balanced door may NOT reverse when required and could result in SEVERE
INJURY or DEATH.
3. ALL repairs to cables, spring assemblies and other hardware MUST be made by a trained
door systems technician BEFORE installing opener.
4. Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing
opener to avoid entanglement.
5. Where possible, install the door opener 7 feet (2.13 m) or more above the floor.
6. Mount the emergency release within reach, but at least 6 feet (1.83 m) above the floor
and avoiding contact with vehicles to avoid accidental release.
7. NEVER connect garage door opener to power source until instructed to do so.
8. NEVER wear watches, rings or loose clothing while installing or servicing opener. They
could be caught in garage door or opener mechanisms.
9. Install wall-mounted garage door control:
•within sight of the garage door.
•out of reach of small children at a minimum height of 5feet (1.5m)
above floors, landings, steps or any other adjacent walking surface.
•away from ALL moving parts of the door.
10. Place entrapment warning label on wall next to garage door control in a
prominent location.
11. Place emergency release/safety reverse test label in plain view on inside of
garage door.
12. Upon completion of installation, test safety reversal system. Door MUST
reverse on contact with a 1-1/2" (3.8cm) high object (or a 2x4 laid flat) on the
floor.
13. To avoid SERIOUS PERSONAL INJURY or DEATH from electrocution,
disconnect ALL electric power BEFORE performing ANY service or
maintenance.
14. DO NOT install on a one-piece door if using devices or features providing
unattended close. Unattended devices and features are to be used ONLY with
sectional doors.
15. SAVE THESE INSTRUCTIONS.