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Works By Itself
Why does my LiftMaster 3255 myQ WiFi go up and down occasionally by itself? I do not touch anything ...
Why does my LiftMaster 3255 myQ WiFi go up and down occasionally by itself? I do not touch anything ...
(Posted by rileymackallar 1 year ago)
Garage Door Opener Model
How do I know if I have a 3255 or 3255-2M garage door opener?
How do I know if I have a 3255 or 3255-2M garage door opener?
(Posted by ericoster1 3 years ago)
How To Change Light Socket In Liftmaster 3255
(Posted by aziluka 9 years ago)
How Much Is Liftmaster 3255m Garage Opener
(Posted by sepdjmark 9 years ago)
What Is The Price For Liftmaster 3255m
(Posted by bmihab2000 9 years ago)
LiftMaster 3255 Videos
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Popular LiftMaster 3255 Manual Pages
3255 Manual - Page 1
®
GARAGE DOOR OPENER
Models 3245 1/3 HP 3255 1/2 HP 3255-2 1/2 HP
For Residential Use Only
The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196
www.liftmaster.com
Owner's Manual
■ 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 ...
3255 Manual - Page 2
... reprogram a hand-held remote control 31
To erase all codes 31
3-Button remotes 31
To add, reprogram or change a Keyless Entry PIN 32
Repair Parts
33-34
Rail assembly parts 33
Installation parts 33
Motor unit assembly parts 34
Accessories
35
Repair Parts and Service
36
Warranty
36
INTRODUCTION
Safety Symbol and Signal Word Review
This garage door opener has been designed and...
3255 Manual - Page 5
contain the motor unit and all parts illustrated below .
3245 (1), 3255 (1), 3255-2 (2)
LOCK
LIGHT
Multi-Function Door Control Panel
: SECURITY ®
Single-Button Remote Control
Remote Control Visor Clip
Chain
Sprocket Cover Styrofoam
Motor Unit with 2-Conductor White & White/Black Bell Wire attached
Safety Labels and
Literature
INSTALLATION HARDWARE
Hex Bolt 5/16"-18x7/8" (4) Lag ...
3255 Manual - Page 6
... STYROFOAM. To avoid SERIOUS damage to obtain more chain slack.
• Insert the second washered bolt.
To avoid possible SERIOUS INJURY to door opener. • Align rail and styrofoam over the sprocket.
ASSEMBLY STEP 1
Attach the Rail to the Motor Unit
To avoid installation difficulties, do not run the garage door opener until instructed to do so. • Remove the two washered...
3255 Manual - Page 7
... or DEATH:
1.
READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS.
2. ALL repairs to garage door control.
11. ASSEMBLY STEP 3
Tighten the Chain
• Spin the inner nut and lock washer down the trolley threaded shaft, away from ALL moving parts of Rail
You have now finished assembling your garage door opener.
If the chain returns to secure the adjustment. Then...
3255 Manual - Page 11
... will need help at this point. Slide the outer trolley toward the motor unit.
Header Bracket
Top of door. To prevent damage to garage door, rest garage door opener rail on 2x4 placed on its side on the trolley release arm to your door type as illustrated. INSTALLATION STEP 4
Position the Opener
Follow instructions which apply to disconnect inner and outer sections.
3255 Manual - Page 12
... unit to provide rigid support.
This bracket and fastening hardware are shown. Operate the door manually. Attach one end of the rail surface where the trolley slides with 5/16"-18x7/8" hex bolts, lock washers and nuts.
6. NOTE: DO NOT connect power to make sure the rail is not centered above the door).
7. INSTALLATION STEP 5
Hang the Opener
Three representative installations...
3255 Manual - Page 13
... insulation from ALL moving parts of the cover with a small flat head screwdriver (Figure 4). If installing into quick-connect holes: white to white and red/white to motor unit. NOTE: DO NOT connect the power and operate the opener at a minimum height of 5 feet (1.5 m), and away from end of closing garage door: • Install door control within sight of the...
3255 Manual - Page 26
... installed and aligned) 1. The opener lights will turn off again.
With a Multi-Function Door Control, this feature, start with 1-1/2" high (3.8 cm) high object (or a 2x4 laid flat) on , then off automatically after interruption; READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS.
2. ALWAYS keep remote controls out of reach of which changes with garage door control push buttons or remote...
3255 Manual - Page 27
..., either manually or by using the door control or remote. It will remain on or off , press and hold the Lock button for a 3-1/2 minute interval, etc., up to a maximum of persons and obstructions.
• NEVER use emergency release handle unless garage doorway is CLOSED. Press
again to turn it off whenever the "Learn" button on . The door can be...
3255 Manual - Page 29
... Using the Wall-Mounted Door Control.
• Reprogram remotes following the instructions for flashes on the motor unit then refer to Diagnostic Chart on when the safety sensor beam has been obstructed. Refer to a closed , the chain will move away from the remote control or door control. My lights will not turn off when door is open: • The garage door opener is normal.)
•...
3255 Manual - Page 30
...
Safety Reversing Sensor
LED or Diagnostic LED
"Learn" Button
Diagnostic Chart
Installed Safety Reversing
Sensor
Your garage door opener is programmed with jumper wire. If motor unit activates,
replace door control. • If motor unit does not activate, disconnect door control wires from back each of motor unit. • Remove sensors from brackets and shorten sensor wires to wall and...
3255 Manual - Page 32
.... The motor unit lights will blink four times.
3. The door should move . The opener light will blink once when the temporary PIN has been learned. To set a temporary PIN:
1. If light bulbs are not installed, two clicks will be used up one button close is already mounted outside the garage.
1. Release the # button.
2.
Test by visitors or service people with...
3255 Manual - Page 35
...; 4-Button Remote Control: Includes visor clip. Wireless Door Control: Push bar, light feature and auxiliary button. Includes battery. Surge Protector: The Garage Door Opener Surge Protector is open garage door manually from outside by entering a password on a lamp, television or other appliance from car, bedside, or anywhere in the garage. Enables homeowner to operate garage door opener...
3255 Manual - Page 36
... to comply strictly with the instructions regarding installation, operation, maintenance and testing. WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOWING INFORMATION:
• PART NUMBER • PART NAME • MODEL NUMBER ADDRESS ORDERS TO: THE CHAMBERLAIN GROUP, INC. The proper operation of this limited warranty, will be repaired or replaced with any product returned for warranty...
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