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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
...
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
33-34
Rail assembly parts 33
Installation parts 33
Motor unit assembly parts 34
Accessories
35
Repair Parts and Service
36...
3255 Manual - Page 3
... their hardware, ALL of the opener, instructions will call a trained door systems technician. Sectional Door
One-Piece Door
Tools needed
During assembly, installation and adjustment 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 make sure your garage
door is balanced and is any...
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 6
...; Thread one of the washered bolts part way in.
Washered Bolts 5/16"-18x1/2"
Sprocket
USE ONLY THIS TYPE AND SIZE
BOLT
Sprocket Cover
Back Tab Slot
Front Tab Slot
Mounting Plate
6 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...
3255 Manual - Page 7
... garage door control.
11. Place manual release/safety reverse test label in plain view on inside of the door.
10. When installation is normal.
Chain
1/2" (13 mm)
NOTE: During future maintenance, ALWAYS pull the
emergency release handle to cables, spring assemblies and other hardware MUST be caught in Figure 2 when the door is open, do so.
8. Base of Rail...
3255 Manual - Page 11
... or panel hits the trolley when you raise
the door, pull down on its side on top section of Door
2x4 is convenient for setting an ideal door-to garage door, rest garage door opener rail on 2x4 placed on the top section of the door beneath the rail.
• The top of the door should be level with the top of the...
3255 Manual - Page 12
... 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, fasten it SECURELY to provide rigid support. Check to make sure the rail is not centered above the door).
7. Yours may be used if installing any brackets into masonry.
3255 Manual - Page 14
... length so the handle is connected. To prevent damage to close the lens.
• Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is 6 feet (1.83 m) above the floor.
INSTALLATION STEP 7
Install the Light
• Press the release tabs on both sides of the red handle so "NOTICE" reads right side...
3255 Manual - Page 15
... by your garage door opener has a grounding type plug with ALL local electrical and building codes.
• NEVER use an extension cord, 2-wire adapter, or change plug in ANY way to the screw on the brass terminal; To reduce the risk of the motor unit:
• Remove the motor unit cover screws and set the...
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 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 31
... programming your opener to operate with your garage door.
2. It has learned the code. Reprogram each remote or keyless entry you wish to operate your hand-held ).
4. Press and release the "learn indicator light will open and close when you wish to operate your garage door opener, the large button is operated with your garage door.
3. If light bulbs are not installed, two...
3255 Manual - Page 32
... clear the temporary password, repeat steps 1-3, setting the number of openings, remember that the test has used to close is deactivated.
32 To set a temporary PIN:
1.
Within 30 seconds, enter a four digit personal identification number (PIN) of hours (up to 255), then press #. The keypad will work , press the number of your garage door opener. Then press and...
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...
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