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Most Recent LiftMaster 3245 Questions
Replacing Torsion Spring
(Posted by kjacobs48465 2 years ago)
Liftmaster 3245 Trouble Shooting
My garage door doesn't come down all the way. I have adjusted the down force screw and the door stil...
My garage door doesn't come down all the way. I have adjusted the down force screw and the door stil...
(Posted by 6nova7 10 years ago)
Light Timer
Is it possable to adust the time the stays on after the door has closed?
Is it possable to adust the time the stays on after the door has closed?
(Posted by jamesjohnson118 10 years ago)
Light Socket Replacement
light does not work how do i change out the light socket?
light does not work how do i change out the light socket?
(Posted by jgainey3 11 years ago)
Pin Wil Not Rest
I have followed directions for resetting the pin - both using known pin and using learn mode. The ...
I have followed directions for resetting the pin - both using known pin and using learn mode. The ...
(Posted by Roykasdorf 11 years ago)
Popular LiftMaster 3245 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
...safety instructions 26
Using your garage door opener 26
Using the wall-mounted door control 27
To open the door manually 27
Care of your garage door opener 28
Having a problem 29
Diagnostic chart 30
Programming
31-32
To add or 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...
3255 Manual - Page 4
... 19 for lightweight garage doors (fiberglass, steel, aluminum, door with the installation of your opener. Motor Unit
Vertical Centerline of
Safety
door must not exceed 1/4" (6 mm).
See page 12.
Reversing Sensor
4
Safety Reversing Sensor
Safety Gap between floor and bottom of door must not exceed 1/4" (6 mm). Safety Reversing Sensor
Safety Reversing Sensor
Gap between floor...
3255 Manual - Page 5
... the model purchased.
is also listed below .
Trolley
One-Piece Rail
Curved Door Arm Section
Chain Pulley Bracket
Door Bracket
Safety Sensor Bracket (2)
The Protector System® (2) Safety Reversing Sensors (1 Sending Eye and 1 Receiving Eye) with Light Lens
CEILING MOUNT ONLY UP
Header Bracket
2 Conductor Bell Wire White & White/Red?
Carton Inventory
Your garage door opener...
3255 Manual - Page 7
...
adjusting chain. NEVER wear watches, rings or loose clothing while installing or servicing opener. NEVER connect garage door opener to power source until instructed to the installation section. They could result in the direction shown (Figure 1). READ AND FOLLOW ALL INSTALLATION WARNINGS AND INSTRUCTIONS.
2.
Place entrapment warning label on properly balanced and lubricated...
3255 Manual - Page 12
... door (or in the structural supports.
4. Operate the door manually....supports before installing the opener.
Hanging brackets should be angled (Figure 1) to structural supports of the hanging bracket to the hanging brackets with 5/16"-18x1-7/8" lag screws.
5. Remove the 2x4. NOTE: DO NOT connect power to the structural support.
2. Measure the distance from a falling garage door opener...
3255 Manual - Page 13
... insulation from moving parts of 5 feet (1.5 m), and away from a closing garage door. If installing into quick-connect holes: white to white and red/white to secure.
NOTE: DO NOT connect the power and operate the opener at a minimum height of door. • NEVER permit children to operate or play with door control push buttons or remote control transmitters...
3255 Manual - Page 16
... an obstruction breaks the light beam while the door is not connected to full open position, and the opener lights will flash 10 times.
above the floor. INSTALLATION STEP 10
Install The Protector System®
The safety reversing sensor must be connected and aligned correctly before the garage door opener will move in the path of its electronic beam...
3255 Manual - Page 22
... be adjusted. Figure 5
Inner Trolley
Outer Trolley
Door Arm
Door Arm Connector Hole
Emergency Release Handle
Closed Door
Inner Trolley
Outer Trolley
Correct Angle
Door Arm
Open Door
Door with the remaining clevis pin. Limit adjustment screws are located on page 23. Manually close the door and lift the door arm to the door bracket with the 5/16"x1-1/4" clevis pin...
3255 Manual - Page 23
... TO ADJUST THE LIMITS
• If the door does not open and close ) force. ADJUSTMENT STEP 1
Adjust the UP and DOWN Travel Limits
Limit adjustment settings regulate the points at which the door will stop .
Turn the UP limit adjustment screw clockwise. See Troubleshooting, page 18. Without a properly installed safety reversal system, persons (particularly small children...
3255 Manual - Page 26
....
14. ALWAYS KEEP GARAGE DOOR PROPERLY BALANCED (see page 3). ALL repairs to garage door opener BEFORE making any of persons and obstructions.
8. ALWAYS disconnect electric power to cables, spring assemblies and other control may also need adjustment.
10. SAVE THESE INSTRUCTIONS. Using Your Garage Door Opener
Your Security✚® opener and hand-held Remote Control: Hold the...
3255 Manual - Page 29
... safety reversing sensor must be connected and aligned correctly before the garage door opener will sag. If the trolley re-engages with a security light feature. This feature activates the light on the following the programming instructions. Refer to Installation Step 10: Install The Protector System®.
• Check diagnostic LED for the force and limit settings is against...
3255 Manual - Page 34
... 1/3 HP
Capacitor bracket
Terminal block with screws
Universal replacement motor and bracket assembly Complete with: Motor, worm, bracket, bearing assembly and RPM sensor
KEY PART NO. UP DN
Drive Gear
Center Limit Contact
... (2)
Line cord
End panel with all labels
NOT SHOWN Motor shaft bearing kit Opener assembly hardware kit (includes screws not designated by a number in illustration)
34 ...
3255 Manual - Page 35
... feature and auxiliary button.
This temporary password can add a temporary password for the largest door of your garage door is designed to open or closed.
Surge Protector: The Garage Door Opener Surge Protector is open garage door manually from outside by disengaging trolley.
373P
Extension Brackets:
(Optional) For safety sensor installation onto the wall or floor.
374LM
377LM...
3255 Manual - Page 36
...WARRANTY ALSO DOES NOT COVER ANY PROBLEMS CAUSED BY INTERFERENCE. LIFTMASTER SERVICE IS ON CALL
HOW TO ORDER REPAIR PARTS
OUR LARGE SERVICE ORGANIZATION SPANS AMERICA
INSTALLATION AND SERVICE INFORMATION IS AS NEAR AS YOUR TELEPHONE. Defective parts will be repaired or replaced with those instructions will be repaired or replaced (at Seller's sole option) at prevailing prices and you .
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