Chamberlain 8365W User manual

Wi-Fi®Garage Door Opener
Premium Series Chain Drive Models 8365W and 8365W-267
• 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.
FOR RESIDENTIAL USE ONLY
LiftMaster
300 Windsor Drive
Oak Brook, IL 60523
Register your garage door opener to receive
updates and offers from LiftMaster
Send it in by texting
the photo to 71403 (US)
or visit www.liftmaster.photo (Global)
Take a photo of the camera icon
including the points ( ).

2
Contents
Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Install the Door Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Install the Protector System®. . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Power. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Repair Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

3
Preparation
MyQ®Serial Number
Write down the following information for future reference:
MyQ®Serial Number:
MyQ®Serial Number Product 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®Smartphone Control 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®Smartphone Control, and any other MyQ®devices are to be used
ONLY with sectional doors.

4
Preparation
Test the Wi-Fi Signal Strength
Before You Begin
You will need:
lWi-Fi enabled smartphone, tablet or laptop
lBroadband Internet Connection
lWi-Fi signal in the garage (2.4 Ghz, 802.11b/g/n required)
lPassword 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 WiFiHelp.LiftMaster.com.
See page 29 to connect the garage door opener to a mobile device.
Check the Door
To prevent possible SERIOUSINJURYor DEATH:
lALWAYS 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.
lNEVER try to loosen, move or adjust garage door, door springs, cables,
pulleys, brackets or their hardware, ALLof which are under EXTREME tension.
lDisable ALLlocks and remove ALLropes connected to garage door BEFORE
installation and operating garage door opener to avoid entanglement.
lDO 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:
lALWAYS disable locks BEFORE installing and operating the opener.
lONLY 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 inch (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 9.
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