Chamberlain 85870 User manual

Wi-Fi®Garage Door Openers
Chain Drive Model - 85870
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.
Register your garage door opener to receive updates and offers from LiftMaster.
SM
1. Take a photo of the camera icon
including the points ( ).
2. Send it in by texting the photo to
71403 (US) or visit
www.liftmaster.photo (Global).
LiftMaster
300 Windsor Drive
Oak Brook, IL 60523

2
Table of Contents
Preparation 3
Assembly 7
Installation 9
Install the Door Control 17
Install the Protector System 19
Adjustments 25
Operation 28
Maintenance 35
Troubleshooting 36
Accessories 38
Warranty 39
Automatic Garage Door Opener Safety & Maintenance Guide 40
Repair Parts 42

3
Preparation
myQ®Serial Number
Write down the following information for future reference:
myQ®Serial Number:
myQ®Serial Number Product S/N
Product S/N:
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
For compatible router specifications and help, visit support.chamberlaingroup.com.
See page 30 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
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.
Garage Door Opener Assembly
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. Chain spreader
K. Chassis support bracket
L. Chain
M. Door control
N. White and red/white wire
O. The Protector System
Safety reversing sensors with white and white/black wire attached: Sending sensor (1),
receiving sensor (1), and safety sensor brackets (2)
P. Safety labels and literature
Q. Rail grease
R. Remote Control (893MAX)
Hardware
Assembly
Chassis Support Bracket Hardware Chain Spreader Hardware
Screw #8-32 x 3/8" (2) Screw #8-32 x 3/8" (2)
Hex Bolts 1/4"-20 x 5/8" (2) Rail Hardware
Lock Washers (2) Washered Bolts and Lock Washer (mounted in
the top of the garage door opener)
Washered Bolt 5/16"-18 x 1/2" (2)
Installation
Hex Bolt 5/16"-18 x 7/8" (4) Self-Threading Screw 1/4"-14 x 5/8" (2)
Lag Screw 5/16"-9 x 1-5/8" (2) Ring Fastener (3)
Lag Screw 5/16"-18 x 1-5/8" (2) Carriage Bolt 1/4"-20 x 1/2" (2)
Clevis Pin 5/16" x 2-3/4" (1) Wing Nut 1/4"-20 (2)
Clevis Pin 5/16" x 1-1/4" (1) Hex Bolt 1/4"-20 x 5/8" (2)
Clevis Pin 5/16" x 1" (1) Lock Nut 1/4"-20 (2)
Nut 5/16"-18 (4) Lag Screw 1/4" x 1-1/2" (4)
Lock Washer 5/16"-16 (4)
Door Control Hardware
Screw 6AB x 1" (2) Drywall Anchors (2)
Screw 6-32 x 1" (2) Insulated Staples
AB
C
K
J
I
P
DE
F
H
G
L
M
N
Q
O
R
Not
Provided Not
Provided

7
Assembly
1 Attach the Rail to the Garage Door Opener
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 bolt and lock nut 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 washered bolt and lock nut.
4. Position the chain around the garage door opener sprocket.
5. Attach the chain spreader to the garage door opener with screws.
6. Guide the chain around the selected groove in the chain spreader, to engage either the 8-
tooth or 6-tooth sprocket.
NOTE: The 6-tooth sprocket is for use with Carriage House Doors and the 8-tooth sprocket
is for use with regular doors.
Washered Bolt
5/16"-18x1/2"
(Mounted in the garage
door opener)
HARDWARE
Lock Nut
(Mounted in the
garage door opener)
Lock
Nut
Washered Bolt
5/16"-18x1/2"
Hex Screws 8-32x1"
Washers
Chain Spreader6-Tooth
Sprocket
8-Tooth
Sprocket
Chain Spreader
Model 85870 only
Motor Unit Mounting Plate Motor Unit Mounting Plate

8
Assembly
2 Attach the Chassis Support Bracket
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.
1. Position the chassis support bracket on the unit.
2. Attach the bracket to the rail with 1/4"-20 x 5/8" hex bolts and lock washers. Do not
overtighten.
3. Attach the bracket to the opener by inserting a 5/16"-18 x 1/2" washered screw through a
hole in each side flange and a matching hole in the bracket. Complete the connection by
inserting the #8-32 x 3/8" screw through the back flange and the hole in rail support.
Washerd Bolt
5/16"-18x1/2"
Screw
#8-32x3/8"
Hex Bolt
1/4"-20x5/8"
Lock
Washer
3 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.
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
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.

10
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

11
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"
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
6" (15 cm)
Maximum
Door Spring
(Garage Door)
Lag Screw
5/16"-9 x 1-5/8"

12
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.
Ring
Fastener
Clevis Pin
5/16" X 2-3/4"
HARDWARE
Clevis Pin 5/16" x 2-3/4" Ring Fastener
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.
Connected Disconnected

13
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

14
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.
1. Pull on the top center of the light lens and rotate the light lens down.
2. Insert an A19 incandescent (100W maximum) or compact fluorescent (26W,
100Wequivalent)light bulb into the light socket.
NOTE: DO NOT use halogen, short neck, or specialty light bulbs as these may overheat the end panel
or light socket. DO NOT use LED bulbs as they may reduce the range or performance of your remote
control(s).
3. Rotate the lens up to close.
or or
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

15
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

16
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. 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).
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.
Straight
Door Arm Curved
Door
Arm
(Groove
facing
out)
CORRECT
Straight
Door
Arm
Curved
Door
Arm
INCORRECT
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"
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

17
Install the Door Control
1 Install the Door Control
To prevent possible SERIOUS INJURY or DEATH from electrocution:
•Be sure power is NOT connected BEFORE installing control panel.
•Connect control panel ONLY to 12 VOLT low voltage wires.
To prevent possible SERIOUS INJURY or DEATH from a closing garage door:
•Install control panel 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 control panel 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 1. Your garage door opener is
compatible with up to 2 Smart Control Panels or 4 of any other Security+ 2.0 control panels.
NOTE:Older LiftMaster control panels 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 control panel. 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 control panel over the screw and slide down into place.
6. Lift the push bar up and mark the top hole.
7. Remove the control panel from the wall and drill a 5/32" hole for the top screw.
8. Position the bottom hole of the control panel 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

18
Install the Door Control
2 Wire the Door Control to the Garage Door Opener
PRE-WIRED INSTALLATIONS: When wiring the door control to the garage door opener make sure
you use the same wires that are connected to the door control.
1. Run the white and red/white wire from the door control to the garage door opener. Attach
the wire to the wall and ceiling with staples (not applicable for gang box or pre-wired
installations). Do not pierce the wire with the staple as this may cause a short or an open
circuit.
2. Strip 7/16" (11 mm) of insulation from the end of the wire near the garage door opener.
3. Connect the wire to the red and white terminals on the garage door opener. To insert or
release wires from the terminal, push in the tab with screwdriver tip.
7/16" (11 mm)
2
3
1
Staple
RED WHITE WHITE GREY
3 Attach the Warning Labels
1. Attach the entrapment warning label on the wall near the door control with tacks or staples.
2. Attach the manual release/safety reverse test label in a visible location on the inside of the
garage door.

19
Install the Protector System®
Introduction
Be sure power is NOT connected to the garage door opener BEFORE installing the safety
reversing sensor.
To prevent SERIOUS INJURY or DEATH from closing garage door:
•Correctly connect and align the safety reversing sensor. This required safety device
MUST NOT be disabled.
•Install the safety reversing sensor so beam is NO HIGHER than 6" (15 cm) above garage
floor.
IMPORTANT: The safety reversing sensors MUST be connected and aligned correctly before the
garage door opener will move in the down direction.
The Protector System® includes two safety reversing sensors which use a light beam to prevent the
garage door from closing. The sending sensor (amber LED) transmits the beam to the receiving
sensor (green LED) when both are powered and aligned. The receiving sensor (green LED) has a
label on the sensor to identify it as the receiving sensor before it is powered on. If an obstruction
breaks the light beam while the door is closing, the door will stop, and reverse to the full open
position.
When installing the safety reversing sensors, check:
•Sensors are installed INSIDE the garage.
•Sensor lenses are facing each other. IMPORTANT: Do not allow direct sunlight to the
receiving sensor (green LED).
•Sensor beam is NO HIGHER than 6" (15 cm) above the floor and the light beam is
unobstructed.
•The receiving sensor has a warning sticker on the back.
Invisible Light Beam
Protection Area
Safety Reversing Sensor
6" (15 cm) max. above floor
Safety Reversing Sensor
6" (15 cm) max. above floor

20
Install the Protector System®
1 Install the Safety Reversing Sensors
HARDWARE
Wing Nut (2)
Hex Screw 10-24 (2)
The safety reversing sensors are designed to clip onto the door track with the provided sensor
brackets. If the door track will not support the sensor bracket a wall installation is recommended.
The sensor beam should be NO HIGHER than 6" (15 cm) above the floor.
DOOR TRACK INSTALLATION
1. Slide the curved arms of the sensor bracket around the edge of the door track. Snap into
place so that the sensor bracket is flush against the track.
2. Slide the hex screw through the sensor.
3. Attach the sensor to the bracket with the wing nut. Make sure the lens is not obstructed by
the bracket.
Repeat the steps with the other sensor on the opposite door track. Both lenses must face each other.
6" (15 cm) max.
Door track
1
2 3
Garage door
Wing nut
WALLINSTALLATION
Make sure the brackets on each side are clear of the door track and have the same amount of
clearance so the sensors will align correctly. If additional clearance is needed, use extension brackets
041A5281-1 (not provided) or wood blocks.
1. Attach the sensor bracket against the wall with two lag screws (not provided).
2. Slide the hex screw through the sensor.
3. Attach the sensor to the bracket with the wing nut. Make sure the lens is not obstructed by
the bracket.
Repeat the steps with the other sensor on the opposite side of the garage door. Both lenses must
face each other.
OR
1
Wing Nut
OPTIONAL
2 3
Door track
Inside
garage wall
6" (15 cm)
max.
Not provided