Chamberlain 8160W User manual

Wi-Fi®Garage Door Openers
Chain Drive Models - 8160W 8160WB 8164W 8165W
Belt Drive Models - 8155W
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 8160W, 8160WB, 8164W, and 8165W 6
Carton Inventory: Model 8155W 7
Assembly 8
Models 8160W, 8160WB, 8164W*, and 8165W 8
Model 8155W 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 8160W, 8160WB, 8164W, and 8165W 49
Model 8155W 52

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
Unattended Operation
The Timer-to-Close (TTC) feature, the myQ® App, and myQ® Garage Door and Gate Monitor are
examples of unattended close and are to be used ONLY with sectional doors. Any device or feature
that allows the door to close without being in the line of sight of the door is considered unattended
close. The Timer-to-Close (TTC) feature, the myQ® App, and any other myQ® devices are to be used
ONLY with sectional doors.

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 8160W, 8160WB, 8164W, and 8165W
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 8160WB only)
SECURITY+ 2.0®ACCESSORIES
882LMW
Multi-Function Door Control
Models: 8160W, 8160WB, 8165W
883LMW
Push Button Door Control
Models: 8164W
893LM
Remote Control
Models: 8160W, 8160WB, 8165W
891LM
Remote Control
Model: 8164W
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 8155W
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 8160W, 8160WB, 8164W*, AND 8165W
* 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 8160WMX and 8160WBMX: Attach the sprocket cover over the garage door opener
sprocket and attach with hex screws.
Models 8164WMX and 8165WMX: 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 8160W and 8160WB Models 8164W and 8165W
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 8155W
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, belt, and
styrofoam.
3. Fasten the rail with the previously removed bolts.
4. Position the belt around the garage door opener sprocket.
5. Attach the sprocket cover over the garage door opener sprocket and attach with hex screws.
Washered Bolts
5/16"-18 x 1/2"
(Mounted in
the garage
door opener)
Hex Screws 8 x 3/8"
Sprocket
Cover
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.

11
Installation
1 Determine the Header Bracket Location
To prevent possible SERIOUS INJURY or DEATH:
•Header bracket MUST be RIGIDLY fastened to structural support on header wall or
ceiling, otherwise garage door might NOT reverse when required. DO NOT install header
bracket over drywall.
•Concrete anchors MUST be used if mounting header bracket or 2x4 into masonry.
•NEVER try to loosen, move or adjust garage door, springs, cables, pulleys, brackets, or
their hardware, ALL of which are under EXTREME tension.
•ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of
balance. An unbalanced garage door might NOT reverse when required.
•DO NOT enable the Timer-to-Close functionality if operating either one-piece or swinging
garage doors. To be enabled ONLY when operating a sectional door.
Close the door and mark the inside vertical centerline of the garage door.
Extend the line onto the header wall above the door. You can fasten the header bracket within 4 feet
(1.22 m) of the left or right of the door center only if a torsion spring or center bearing plate is in the
way; or you can attach it to the ceiling when clearance is minimal. (It may be mounted on the wall
upside down if necessary, to gain approximately 1/2" (1 cm). If you need to install the header bracket
on a 2x4 (on wall or ceiling), use lag screws (not provided) to securely fasten the 2x4 to structural
supports.
Open your door to the highest point of travel as shown. Draw an intersecting horizontal line on the
header wall 2" (5 cm) above the high point. This height will provide travel clearance for the top edge
of the door.
NOTE: If the total number of inches exceeds the height available in your garage, use the maximum
height possible, or refer to page 11 for ceiling installation.
Header Wall
Unfinished
Ceiling
Vertical Centerline
of Garage Door
2x4
2x4
Structural
Supports
Level
(Optional)
OPTIONAL
CEILING
MOUNT FOR
HEADER
BRACKET
Sectional door with curved track
Header Wall
Track
2" (5 cm)
Highest Point
of Travel
Door

12
Installation
2 Install the Header Bracket
You can attach the header bracket either to the wall above the garage door, or to the ceiling. Follow
the instructions which will work best for your particular requirements. Do not install the header
bracket over drywall. If installing into masonry, use concrete anchors (not provided).
HARDWARE
Lag Screw 5/16"-9x1-5/8"
OPTION A - WALL INSTALLATION
1. Center the bracket on the vertical centerline with the bottom edge of the bracket on the
horizontal line as shown (with the arrow pointing toward the ceiling).
2. Mark the vertical set of bracket holes (do not use the holes designated for ceiling mount).
Drill 3/16" pilot holes and fasten the bracket securely to a structural support with lag screws.
Wall Mount
Optional Mounting Holes
Vertical
Centerline of
Garage Door
(Header Wall)
Header
Bracket
2x4 Structural
Support
Door Spring
(Garage Door)
Highest Point of
Garage Door Travel
Horizontal
Line
Lag Screw
5/16"-9 x 1-5/8"
Lag Screw
5/16"-9 x
1-5/8"
FOR SQUARE RAIL
FOR T-RAIL
Optional
Mounting
Holes
Header Wall
I
2x4 Structural
Support
Door
Spring
Garage Door
Highest Point of
Garage Door Travel
Horizontal
Line
Center
of Door
Wall Mounting Holes
OPTION B - CEILING INSTALLATION
1. Extend the vertical centerline onto the ceiling as shown.
2. Center the bracket on the vertical mark, no more than 6" (15cm) from the wall. Make sure
the arrow is pointing toward the wall. The bracket can be mounted flush against the ceiling
when clearance is minimal.
3. Mark the side holes. Drill 3/16" pilot holes and fasten bracket securely to a structural support
with the hardware provided.
(Header Wall)
Ceiling Mounting Holes
Finished Ceiling
Vertical
Centerline of
Garage Door
Header Bracket
Header Bracket
6" (15 cm) Maximum
Door Spring
(Garage Door)
Lag Screw
5/16"-9 x 1-5/8"
FOR SQUARE RAIL
FOR T-RAIL
Header Wall
Lag Screws
Ceiling Mounting
Holes
Finished Ceiling
Center of Door
6" (15 cm)
Maximum
Door Spring
Garage Door

13
Installation
3 Attach the Rail to the Header Bracket
1. Align the rail with the header bracket. Insert the clevis pin through the holes in the header
bracket and rail. Secure with the ring fastener.
NOTE: Use the packing material as a protective base for the garage door opener.
FOR T-RAIL
HARDWARE
Clevis Pin 5/16" x 2-3/4" Ring Fastener
Ring
Fastener
Clevis Pin
5/16" X 2-3/4"
FOR SQUARE RAIL
Clevis Pin
5/16"x1-1/2" Ring Fastener
Clevis Pin
Ring Fastener
HARDWARE

14
Installation
4 Position the Garage Door Opener
To prevent damage to garage door, rest garage door opener rail on 2x4 placed on top section of
door.
1. Remove the packing material and lift the garage door opener onto a ladder.
2. Fully open the door and place a 2x4 (laid flat) under the rail.
A 2x4 is ideal for setting the distance between the rail and the door. If the ladder is not tall enough
you will need help at this point. If the door hits the trolley when it is raised, pull the trolley release
arm down to disconnect the inner and outer trolley. Slide the outer trolley toward the garage door
opener. The trolley can remain disconnected until instructed.
FOR T-RAIL
Connected Disconnected
FOR SQUARE RAIL
Connected Disconnected
One-piece door
without tracks
2x4 2x4
All other
door types

15
Installation
5 Hang the Garage Door Opener
To avoid possible SERIOUS INJURY from a falling garage door opener, fasten it SECURELY to
structural supports of the garage. Concrete anchors MUST be used if installing ANY brackets into
masonry.
Hanging your garage door opener will vary depending on your garage. Two representative
installations are shown. Yours may be different. Hanging brackets should be angled (Figure 1) to
provide rigid support. On finished ceilings (Figure 2), attach a sturdy metal bracket to structural
supports before installing the opener. This bracket and fastening hardware are not provided.
1. Measure the distance from each side of the motor unit to the structural support.
2. Cut both pieces of the hanging bracket to required lengths.
3. Drill 3/16" pilot holes in the structural supports.
4. Attach one end of each bracket to a support with 5/16"-18 x 1-7/8" lag screws (not
provided).
5. Fasten the opener to the hanging brackets with 5/16"-18 x 7/8" hex bolts, lock washers and
nuts.
6. Check to make sure the rail is centered over the door (or in line with the header bracket if the
bracket is not centered above the door).
7. Remove the 2x4. Operate the door manually. If the door hits the rail, raise the header
bracket.
NOTE: DO NOT connect power to opener at this time.
FIGURE 1 FIGURE 2
(Not Provided)
Lag Screws
5/16"- 18x1-7/8"
Measure
Distance
Hex Bolt 5/16"- 18x7/8", Lock Washer 5/16", Nut 5/16"-18
FIGURE 3
Not Provided
Finished Ceiling
Unfinished Ceiling
Hex Bolt 5/16"- 18x7/8" Nut 5/16"-18Lock Washer 5/16"
HARDWARE

16
Installation
6 Install the Light Bulbs
To prevent possible OVERHEATING of the end panel or light socket:
•Use ONLY A19 light bulbs.
•DO NOT use incandescent bulbs larger than 100W.
•DO NOT use compact fluorescent light bulbs larger than 26W (100W equivalent).
•DO NOT use halogen bulbs.
•DO NOT use short neck or specialty light bulbs.
LED bulbs may cause remote control radio interference. Use ONLY LED bulbs recommended
here: chamberlain.com/bulb.
1. Pull light lens down.
2. Insert light bulb.
3. Close light lens.
MODELS 8160W AND 8160WB
or
MODELS 8155W, 8164W, and 8165W
100 Watt (Max)
Standard Light Bulb
Release Tab
Lens Hinge
7 Attach the Emergency Release Rope and Handle
To prevent possible SERIOUS INJURY or DEATH from a falling garage door:
•If possible, use emergency release handle to disengage trolley ONLY when garage door
is CLOSED. Weak or broken springs or unbalanced door could result in an open door
falling rapidly and/or unexpectedly.
•NEVER use emergency release handle unless garage doorway is clear of persons and
obstructions.
•NEVER use handle to pull door open or closed. If rope knot becomes untied, you could
fall.
1. Insert one end of the emergency release rope through the handle. Make sure that “NOTICE”
is right side up. Secure with an overhand knot at least 1" (2.5 cm) from the end of the rope
to prevent slipping.
2. Insert the other end of the emergency release rope through the hole in the trolley release
arm. Mount the emergency release within reach, but at least 6 feet (1.83m) above floor,
avoiding contact with vehicles to prevent accidental release and secure with an overhand
knot.
NOTE: If it is necessary to cut the emergency release rope, seal the cut end with a match or lighter to
prevent unraveling. Ensure the emergency release rope and handle are above the top of all vehicles
to avoid entanglement.
Trolley
Release Arm
FOR T-RAIL

17
Installation
8 Install the Door Bracket
Fiberglass, aluminum or lightweight steel garage doors WILL REQUIRE reinforcement BEFORE
installation of door bracket. Contact the garage door manufacturer or installing dealer for opener
reinforcement instructions or reinforcement kit. Failure to reinforce the top section as required
according to the door manufacturer may void the door warranty.
A horizontal and vertical reinforcement is needed for
lightweight garage doors (fiberglass, aluminum, steel,
doors with glass panel, etc.) (not provided). A horizontal
reinforcement brace should be long enough to be
secured to two or three vertical supports. A vertical
reinforcement brace should cover the height of the top
panel. Contact the garage door manufacturer or
installing dealer for opener reinforcement instructions
or reinforcement kit.
NOTE: Many door reinforcement kits provide for direct attachment of the clevis pin and door arm. In
this case you will not need the door bracket; proceed to the next step.
SECTIONALDOORS
1. Center the door bracket on the previously marked vertical centerline used for the header
bracket installation. Note correct UP placement, as stamped inside the bracket.
2. Position the top edge of the bracket 2"-4" (5-10 cm) below the top edge of the door, OR
directly below any structural support across the top of the door.
3. Mark, drill holes and install as follows, depending on your door’s construction:
Metal or light weight doors using a vertical angle iron brace between the door panel
support and the door bracket:
•Drill 3/16" fastening holes. Secure the door bracket using the two self threading screws.
(Figure1)
•Alternately, use two 5/16"-18x2" bolts, lock washers and nuts (not provided). (Figure2)
Metal, insulated or light weight factory reinforced doors:
•Drill 3/16" fastening holes. Secure the door bracket using the self-threading screws.
(Figure3)
Wood Doors:
•Use top and bottom or side to side door bracket holes. Drill 5/16” holes through the door
and secure bracket with 5/16"-18 x 2" carriage bolts, lock washers and nuts (not provided).
(Figure4)
NOTE: The 1/4"-14 x 5/8" self-threading screws are not intended for use on wood doors.
FIGURE 1
FIGURE 3
Vertical Reinforcement
Vertical Centerline
of Garage Door
UP
Door Bracket Self-Threading Screw
1/4"-14 x 5/8"
Self-Threading
Screw
1/4"-14 x 5/8"
Vertical Centerline
of Garage Door
UP
FIGURE 4
Vertical
Centerline of
Garage Door
Bolt 5/16"-18 x 2"
(Not provided)
UP
Inside Edge of Door or
Reinforcement Board
FIGURE 2
Vertical Reinforcement
Bolt 5/16"-18 x 2"
(Not provided)
Lock Washer 5/16"
Nut 5/16"-18
Door Bracket
UP
Vertical
Centerline
of Garage Door
Self-Threading Screw
1/4"-14 x 5/8"
HARDWARE

18
Installation
9 Connect the Door Arm to the Trolley
IMPORTANT: The groove on the straight door arm MUST face away from the curved door arm.
1. T-Rail: Close the door. Disconnect the trolley by pulling the emergency release handle.
Slide the outer trolley back (away from the door) about 2" (5 cm).
Square Rail: Close the door. Disconnect the trolley by pulling the emergency release
handle.
2. Attach the straight door arm to the outer trolley using the clevis pin. Attach with the ring
fastener.
3. Attach the curved door arm to the door bracket using the clevis pin. Attach with the ring
fastener.
4. Align the straight door arm with the curved door arm. Select two aligned holes (as far apart
as possible) and attach using the bolts, nuts and lock washers.
NOTE: If the holes do not line up, reverse the straight door arm. Select two aligned holes (as
far apart as possible) and attach using the bolts, nuts and lock washers.
5. Pull the emergency release handle toward the garage door opener until the trolley release
arm is horizontal. The trolley will re-engage automatically when the garage door opener is
activated.
(Groove
facing out)
CORRECT
Straight
Door Arm
Straight
Door Arm
Curved
Door
Arm
Curved
Door
Arm
INCORRECT
HARDWARE
Hex Bolt 5/16"-18 x 7/8"
Nut 5/16"-18
Lock Washer 5/16"
Clevis Pin 5/16" x 1"
Clevis Pin 5/16" x 1-1/4"
Ring Fastener
FOR T-RAIL
FOR SQUARE RAIL
Clevis Pin 5/16" x 1-1/4"
Ring Fastener
Clevis Pin
5/16" x 1"
Nut 5/16"-18
Lock
Washer
5/16"
Hex Bolt
5/16"-18 x 7/8"
Lock Washer
Nut
Hex Bolt
Clevis Pin
5/16"x1-1/4"
Ring Fastener
Clevis Pin
5/16"x1"

19
Install the Door Control
1 Install the Door Control - 882LMW
To prevent possible SERIOUS INJURY or DEATH from electrocution:
•Be sure power is NOT connected BEFORE installing door control.
•Connect door control ONLY to 12 VOLT low voltage wires.
To prevent possible SERIOUS INJURY or DEATH from a closing garage door:
•Install door control within sight of 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, and away from ALL moving parts of door.
•NEVER permit children to operate or play with door control push buttons or remote
control transmitters.
•Activate door ONLY when it can be seen clearly, is properly adjusted, and there are no
obstructions to door travel.
•ALWAYS keep garage door in sight until completely closed. NEVER permit anyone to
cross path of closing garage door.
INTRODUCTION
Compatible with myQ®and Security+ 2.0 accessories, see page 45. Your garage door opener is
compatible with up to 2 Smart Control Panels or 4 of any other Security+ 2.0 door controls.
NOTE:Older LiftMaster door controls and third party products are not compatible.
Install door control within sight of 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, and away from
ALL moving parts of door. For gang box installations it is not necessary to drill holes or install the
drywall anchors. Use the existing holes in the gang box.
NOTE: Your product may look different than the illustrations.
HARDWARE
Screw
6AB x 1" (2)
Drywall
Anchors (2)
Screw
6-32 x 1" (2)
1. Strip 7/16" (11 mm) of insulation from one end of the wire and separate the wires.
2. Connect one wire to each of the two screws on the back of the door control. The wires can
be connected to either screw.
PRE-WIREDINSTALLATIONS:Choose any two wires to connect, note which wires are used
so the correct wires are connected at the garage door opener in a later step.
3. Mark the location of the bottom mounting hole and drill a 5/32" hole.
4. Install the bottom screw, allowing 1/8" (3 mm) to protrude from the wall.
5. Position the bottom hole of the door control over the screw and slide down into place.
6. Lift the push bar up and mark the top hole.
7. Remove the door control from the wall and drill a 5/32" hole for the top screw.
8. Position the bottom hole of the door control over the screw and slide down into place.
Attach the top screw.
7/16" (11 mm) Wall
1 2 3
DRYWALL GANG BOX
6AB x 1"
6-32 x 1"
Drywall Anchor
4-5 6
6-32 x 1"
GANG BOX
8 DRYWALL
6AB x 1"
Drywall Anchor
7

20
Install the Door Control
1 Install the Door Control - 883LMW
To prevent possible SERIOUS INJURY or DEATH from electrocution:
•Be sure power is NOT connected BEFORE installing door control.
•Connect door control ONLY to 12 VOLT low voltage wires.
To prevent possible SERIOUS INJURY or DEATH from a closing garage door:
•Install door control within sight of 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, and away from ALL moving parts of door.
•NEVER permit children to operate or play with door control push buttons or remote
control transmitters.
•Activate door ONLY when it can be seen clearly, is properly adjusted, and there are no
obstructions to door travel.
•ALWAYS keep garage door in sight until completely closed. NEVER permit anyone to
cross path of closing garage door.
INTRODUCTION
Compatible with myQ®and Security+ 2.0 accessories, see page 45. Your garage door opener is
compatible with up to 2 Smart Control Panels or 4 of any other Security+ 2.0 door controls.
NOTE:Older LiftMaster door controls and third party products are not compatible.
Install door control within sight of 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, and away from
ALL moving parts of door. For gang box installations it is not necessary to drill holes or install the
drywall anchors. Use the existing holes in the gang box.
NOTE: Your product may look different than the illustrations.
HARDWARE
Screw 6ABx1" (2)
1. Strip 1/4" (6 mm) of insulation from one end of the wire and separate the wires.
2. Connect one wire to each of the two screws on the back of the door control. The wires can
be connected to either screw.
3. Mount the door control with the hardware provided.
1/4" (6 mm)
1 2 3