Chamberlain 8500 User manual

The Chamberlain Group, Inc.
845 Larch Avenue
Elmhurst, Illinois 60126-1196
www.liftmaster.com
■Please read this manual and the enclosed safety materials carefully!
■Fasten the manual near the garage door after installation.
■The door WILL NOT CLOSE unless the Protector System®and cable tension monitor are
connected and properly aligned.
■Periodic checks of the garage door opener are required to ensure safe operation.
■The model number label is located behind the hinged door of your opener.
■DO NOT exceed 10 complete cycles of door operation per hour.
■This garage door opener is ONLY compatible with MyQ™ and Security✚2.0™ accessories.
This product is intended for installation only by trained garage door technicians. This
product may require adjustments to door springs and or track configurations. This product
is not intended for use on low headroom tracks or garage doors utilizing extension springs.
For Residential and Light Duty Commercial Use
Install On Sectional Doors With Torsion Assemblies Only
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Model 8500
GARAGE DOOR OPENER

2
Introduction
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.
Mechanical
Electrical
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.
Table of Contents
INTRODUCTION 2
Safety Symbol and Signal Word Review .. 2
Planning................................................... 3
Preparing Your Garage Door.................... 4
Tools Needed ........................................... 4
Carton Inventory ...................................... 5
Hardware ................................................. 5
ASSEMBLY 6
Attach the Collar to the
Garage Door Opener ................................ 6
Attach Mounting Bracket to
Garage Door Opener ................................ 7
INSTALLATION 7
Position and Mount the
Garage Door Opener ................................ 8
Attach the Emergency Release Rope
and Handle............................................... 9
Install Power Door Lock........................... 9
Attach the Cable Tension Monitor
(Required).............................................. 10
Install the Door Control
(MyQ®Control Panel) ............................ 11
Install Remote Light............................... 12
Install the Protector System®................ 13
Connect Power....................................... 16
Install the Battery Backup (optional) ...... 18
ADJUSTMENT 19
Program the Travel Limits...................... 19
Set the Force.......................................... 20
Test the Safety Reversal System............ 21
Test the Protector System®................... 21
Test Cable Tension Monitor ................... 22
Test Power Door Lock............................ 22
To Open the Door Manually ................... 22
OPERATION 23
Using Your Garage Door Opener............ 23
Using the Door Control
(MyQ®Control Panel) ............................ 24
Using the Remote Control...................... 25
PROGRAMMING 26
To Add a Remote Control,
Keyless Entry, or MyQ®Enabled
Accessories using the
Door Control (MyQ®Control Panel) ....... 26
Internet Gateway (Not Provided)............ 27
To Erase All Codes From the
Door Control (MyQ®Control Panel)
Memory ................................................. 27
Reprogramming Light or
Additional Light...................................... 28
Additional Programming for the Keyless
Entry (Not Provided) .............................. 28
MAINTENANCE 29
Care of Your Garage Door Opener.......... 29
TROUBLESHOOTING 30
Diagnostic Chart .................................... 30
Troubleshooting..................................... 31
Troubleshooting (Continued) ................. 32
REPAIR PARTS 33
Installation Parts.................................... 33
Garage Door Opener Assembly Parts..... 34
ACCESSORIES 35
REPAIR PARTS AND SERVICE 36
WARRANTY 36

3
Planning
Survey your garage area to see if any of the conditions below apply to your installation.
Depending on your requirements, additional materials may be required.
THIS GARAGE DOOR OPENER IS COMPATIBLE WITH:
• Doors that use a torsion bar and springs. The torsion bar must be 1 inch (2.5 cm)
diameter.
• 4-6 inch (10-15 cm) drums, not to be used on tapered drums over 6 inches (15 cm).
• High lift (up to 54 inches (137.2 cm) high) and standard lift sectional doors up to
14 feet (4.2 m) high.
• Doors up to 18 feet (5.4 m) wide.
• Doors up to 180 sq. ft. (16.7 sq. m).
Review or inspect proposed installation area. The garage door opener can be installed on
the left or right side of door. Select the side that meets the requirements listed below.
a. Must have minimum of 2-1/2 inches
(6.4 cm) between the garage wall and
the center of the torsion bar.
b. Must have minimum of 3 inches
(7.6 cm) between the ceiling and the
center of torsion bar.
c. Must have minimum of 8 inches
(20.3 cm) between the side garage
wall (or obstruction) and the end of
torsion bar.
d. The torsion bar must extend at least
1-5 inches (2.5-12 cm) past the
bearing plate. This may vary depending
on your installation requirements.
e. An electric outlet is required within
6 feet (1.8 m) of the installation area.
If outlet does not exist, contact a
qualified electrician.
f. Depending upon garage construction,
extension brackets or wood blocks
may be needed to install safety
reversing sensors.
g. Alternate floor mounting of the
safety reversing sensors will require
hardware (not provided).
h. Any gap between the floor and the
bottom of the door must not exceed
1/4 inch (6 mm), otherwise the
safety reversal system may not work
properly.
i. A model 475LM Battery Backup is
strongly recommended if there is
no access door to the garage, as
this garage door opener cannot be
used in conjunction with an external
emergency release mechanism.
Introduction
NOTE: Inspect the torsion bar while the
door is raised and lowered. It is important
that there is no noticeable movement up
and down or left and right. If the movement
is not corrected, the life of the garage door
opener will be greatly reduced.
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Torsion
bar
2-1/2 inches
(6.4 cm)
3 inches
(7.6 cm)
Wall or
obstruction
Torsion bar
8 inches
(20.3 cm)
475LM Battery Backup
Safety reversing
sensor
Remote light

4
Introduction
Preparing Your Garage Door
BEFORE YOU BEGIN:
• Disable locks.
• Remove any ropes connected to the
garage door.
Complete the following test to make sure
the garage door is balanced and is not
sticking or binding:
1. Lift the door halfway up. Release the
door. If balanced, it should stay in
place, supported entirely by its springs.
2. 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.
3. Verify equal cable tension on each side
of door. Cable tension should remain
equal during the entire travel of the
door.
To prevent damage to garage door and opener:
• ALWAYS disable locks BEFORE installing and operating the opener.
• ONLY operate garage door opener at 120 V, 60 Hz to avoid malfunction and
damage.
• DO NOT exceed 10 complete cycles of door operation per hour.
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
installing and operating garage door opener to avoid entanglement.
Tools Needed
During assembly, installation and adjustment of the garage door opener, instructions will
call for hand tools as illustrated below.
Specifications
Volts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 Vac - 60 Hz, ONLY
Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 AMP
Rated Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .325 in. lb/sec
10 Cycles per Hour
Pliers Wire Cutters
Claw Hammer
Screwdriver
Adjustable End Wrench
1/4", 5/16" & 3/8" Sockets
and Wrench with 6" Extension
Drill Tape Measure
2
1
Stepladder
Pencil
3/16" and 1/8"
Hex Key Wrench
Needle Nose Pliers
5/32", 3/16", 5/16"
and 3/4" Drill Bits
Sectional Door
Torque Meter (not shown)

5
Carton Inventory
Introduction
LIGHT
HOLD
OPEN
Remote Control
Visor Clip
3-Button Premium Remote Control
Model 895MAX (1)
Remote Light
(Garage Door Opener Light)
with Hardware Bag
Power Door Lock with
2-Conductor White & White/Black
Bell Wire with Connector
2 Conductor Bell Wire
White & White/Red
Garage Door Opener
Cable Tension Monitor
with 2-Conductor
Green/White Bell Wires
Mounting Bracket
Collar with Screws
Safety Reversing Sensor Bracket (2)
The Protector System®
(2) Safety Reversing Sensors
(1 Sending Eye and 1 Receiving
Eye) with 2-Conductor White &
White/Black Bell Wire attached
Safety Labels
and Literature
Hardware
Accessories included with the garage door opener will vary depending on the model purchased. If anything is missing, carefully check
the packing material.
Hex Screw #14-10x1-7/8" (4)
Screw #6x1-1/4" (2)
Machine Screw #6x1" (2)
Carriage Bolt 1/4"-20x1/2" (2)
Wing Nut 1/4"-20 (2)
Pan Head Screw 1/4"-20x1/2" (2)
Hex Head Screw #8x1" (2)
Self Tapping Screw #10-32 (2)
Drywall Anchor (2)
Wall Anchor (Screw-In) (2)
Handle
Rope
Insulated Staples
Lock Template
Door Control
(MyQ®Control Panel)
Model 888LM

6
To avoid installation difficulties, do not run the garage door garage door opener until instructed
to do so.
The garage door opener can be installed on either side of the door (see PLANNING section
page 3). The illustrations shown are for installation on the left side.
1. Loosen the collar screws.
2. Attach collar to the garage door opener motor shaft. The side of the collar with the
larger hole should be placed on the motor shaft. Ensure that the collar is seated all the
way on motor shaft until stop is reached.
3. Position the collar so the screws are facing out and are accessible when attached to
the torsion bar.
4. Tighten the screws on both sides of the collar equally to secure collar to the motor
shaft (to 12-14 ft./lbs. of torque).
NOTE: Do not tighten set screws until indicated.
Attach the Collar to the Garage Door Opener
Assembly
1
To prevent possible SERIOUS INJURY
or DEATH, the collar MUST be properly
tightened. The door may NOT reverse
correctly or limits may be lost due to
collar slip.
RIGHT WRONG
3/16 Hex
Key Wrench
Collar Screws
Set Screws
Collar
Motor Shaft

7
Installation
IMPORTANT INSTALLATION INSTRUCTIONS
To reduce the risk of SEVERE INJURY or DEATH:
WARNING
1. READ AND FOLLOW ALL INSTALLATION WARNINGS AND
INSTRUCTIONS.
2. Install door operator ONLY on properly balanced and
lubricated 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 garage door opener.
4. Disable ALL locks and remove ALL ropes connected to
door BEFORE installing garage door opener to avoid
entanglement.
5 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.
6. NEVER connect door operator to power source until
instructed to do so.
7. NEVER wear watches, rings or loose clothing while
installing or servicing the garage door opener. They could
be caught in door or operator mechanisms.
8. Install wall-mounted door control:
• within sight of the door.
• out of reach of children at minimum height of 5 feet
(1.5 m).
• away from ALL moving parts of the door.
9. Install the Entrapment Warning Placard next to the door
control in a prominent location.
10. Place manual release/safety reverse test label in plain view
on inside of door.
11. Upon completion of installation, test safety reversal
system.
Attach Mounting Bracket to Garage Door Opener
2
1. Loosely attach slotted side of mounting bracket to the same side of the garage door
opener as the collar, using self-threading screws provided.
NOTE: Do not tighten screws until instructed.
Socket Wrench
Assembly
HARDWARE
Screw
#10-32 (2)

8
Installation
HARDWARE
Position and Mount the Garage Door Opener
1
NOTE: For additional mounting options refer to the accessories page.
1. Close the garage door completely.
2. Slide the garage door opener onto the end of the torsion bar. If the torsion bar is too
long or damaged, you may need to cut the torsion bar. Ensure the collar does not
touch the bearing plate.
3. Use a level to position and vertically align the garage door opener. Verify the mounting
bracket is located on a solid surface such as wood, concrete or door/flag bracket.
4. When the garage door opener is properly aligned, mark the mounting bracket holes.
If necessary, tighten collar screws on the torsion bar to hold garage door opener in
place while marking holes.
NOTE: The garage door opener does not have to be flush to wall.
5. Remove the garage door opener from torsion bar. Drill 3/16 inch pilot holes at the
marked locations. Drill through steel plate if necessary.
6. Slide the garage door opener back onto the torsion bar until pilot holes align with
bracket. Securely tighten collar screws to the torsion bar to 12-14 ft./lbs. of torque
(Figure 1).
7. Securely tighten both set screws (Figure 1).
NOTE: You may need to manually raise the door slightly in order to reach the
set screws.
8. Secure the mounting bracket to the wall and to the garage door opener. Use the
14-10x1-7/8 inch screws to secure the mounting bracket to the wall.
9. Secure the antenna wire with a staple to prevent antenna from being entangled in a
door roller.
To prevent possible SERIOUS INJURY
or DEATH:
• Concrete anchors MUST be used if
mounting bracket 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.
• Operator MUST be mounted at a
right angle to the torsion bar to avoid
premature wear on the collar.
Set Screws
3/16" Hex Key Wrench
Bearing
Plate
Insulated Staples
(Not shown)
14-10x1-7/8" Hex Screws (2)
Collar
Torsion Bar
Collar
Screws
FIGURE 1
Mounting Bracket
Screws 14-10x1-7/8"

9
Attach the Emergency Release Rope and Handle
Install Power Door Lock
2
3
1. Thread one end of the rope through the hole in the top of the red handle so “NOTICE”
reads right side up as shown. Secure with an overhand knot at least 1 inch (2.5 cm)
from the end of the rope to prevent slipping.
2. Thread the other end of the rope through the loop in the emergency release cable.
Adjust rope length so the handle is no higher than 6 feet (1.83 m) above the floor.
Secure with an overhand knot.
NOTE: If it is necessary to cut the rope, heat seal the cut end with a match or lighter to
prevent unraveling.
1. The power door lock must be mounted
within 10 feet (3.01 m) of garage door
opener with approximately a 3 inch (7.6
cm) distance between the center of a
door roller and the hole for the power
door lock bolt. If possible, mount on
same side as garage door opener. The
second roller from the bottom is ideal
for most installations.
2. Ensure rail surface is clean and attach
lock template to track.
3. Drill holes as marked on the template.
4. Fasten power door lock to the outside
of the garage door track with hardware
provided.
5. Run bell wire up wall to garage door
opener. Use insulated staples to secure
wire in several places. Insert wire
through the bottom of the garage door
opener.
6. Plug the connector into the garage
door opener.
Installation
The power door lock is used to prevent the garage door from being manually opened once the
door is fully closed.
Garage Door Opener
Emergency
Release Cable
Overhand
Knot
Overhand
Knot
Emergency
Release Handle
To prevent possible SERIOUS INJURY
or DEATH from a falling garage door:
• If possible, use emergency release
handle to disengage door 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.
Roller
Approx. 3"
(7.6 cm)
10 feet (3.01 m) max.
Garage Door
Track
Lock Template
HARDWARE
Insulated Staples
(Not shown)
Lock Screws
1/4"-20x1/2" (2)
Rope
Handle
HARDWARE
Connector
Door Lock
Bell Wire

10
HARDWARE
Attach the Cable Tension Monitor (Required)
4
NOTE: The cable tension monitor is shipped for left side installation. It is recommended
that the cable tension monitor be installed on the same side of the door as the garage door
opener. For right side installation, remove the snap-ring holding the roller in place and
reassemble it on the opposite side of the cable
tension monitor.
1. Position the cable tension monitor as close to the drum as possible. Make sure cable
tension monitor is located over a wood support member and the roller is free from any
obstructions.
NOTE: There must be no obstructions in the installation area that prevent the cable
tension monitor or the cable itself from closing completely when slack is detected.
2. Mark and drill 3/16 inch pilot holes for screws (pilot holes are not required for
anchors).
NOTE: If the cable tension monitor cannot be mounted into wood with the lag screws
provided, it can be mounted into 1/2 inch or greater drywall using the wall anchors (2)
and the #8 hex screws (2) provided in the hardware bag.
3. Attach the cable tension monitor to the wall using the hardware provided. Make sure
that the roller is on top of the cable.
4. Run bell wire to garage door opener. Use insulated staples to secure wire.
5. Connect bell wire to the green quick-connect terminals on the garage door opener
(polarity is not important).
NOTE: Cable must have tension through entire door travel. Make sure there is no slack
in cable on opposite side of garage door during normal operation. If slack occurs
during door travel, adjust cables as required.
Drum
Cable
To insert or release wire, push
in tab with screwdriver tip
(to cable tension monitor)
(to garage door opener)
WHT/GRN
Wall 2"-6"
(5-15 cm)
3/4" Min.(18 cm Min.)
Cable Tension
Monitor
Cable Tension
Monitor Roller
1/8"-1/4"
(3-6 cm)
Installation
The cable tension monitor MUST be connected
and properly installed before the garage door
opener will move in the down direction.
The cable tension monitor detects ANY slack
that may occur in the cables and will reverse
the door, eliminating service calls.
SIDE VIEW
#8 Hex Head Screw (2)
Insulated Staples
(Not shown)
#8 Hex Head Screw (2)
Screw #6 (2)
Wall Anchor (2)
Drum
Cable Tension
Monitor Roller