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LiftMaster 3255 Support Question

LiftMaster 3255 Support Question

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Question posted by ericoster1 on December 24th, 2020

Garage Door Opener Model

How do I know if I have a 3255 or 3255-2M garage door opener?

Current Answers

Answer #1: Posted by INIMITABLE on December 25th, 2020 1:17 AM
This answer was accepted by the poster of the original question.
INIMITABLE

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the video guide link below treats the topic; https://youtu.be/DE560eIX6JU


I hope this is helpful? PLEASE "ACCEPT" and mark it "HELPFUL" to complement my little effort. Hope to bring you more detailed answers

-INIMITABLE

Related 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

... reversal system 25 Test the Protector System 25 Operation 26-30 Operation safety instructions 26 Using your garage door opener 26 Using the wall-mounted door control 27 To open the door manually 27 Care of damage to your garage door opener 28 Having a problem 29 Diagnostic chart 30 Programming 31-32 To add or reprogram a hand-held remote...
3255 Manual - Page 3

...halfway as illustrated below. To prevent damage to garage door and opener: • ALWAYS disable locks BEFORE installing and operating the opener. • ONLY operate garage door opener at 120V, 60 Hz to loosen, move or adjust garage door, door springs, cables, pulleys, brackets or their hardware, ALL of balance. Preparing your garage door Before you begin: • Disable locks. •...
3255 Manual - Page 4

... exceed 1/4" (6 mm). Slack in chain tension is normal when garage door is closed . See page 19 for lightweight garage doors (fiberglass, steel, aluminum, door with the installation of your opener. See page 12. ONE-PIECE DOOR WITHOUT TRACK Header Wall Slack in chain tension is normal when garage door is required. See page 12. Reversing Sensor 4 Safety Reversing Sensor...
3255 Manual - Page 5

...model purchased. Carton Inventory Your garage door opener is packaged in the foam. Parts may be stuck in two cartons which If anything is also listed below . Trolley One-Piece Rail Curved Door Arm Section Chain Pulley Bracket Door... unit and all parts illustrated below . 3245 (1), 3255 (1), 3255-2 (2) LOCK LIGHT Multi-Function Door Control Panel : SECURITY ® Single-Button Remote...
3255 Manual - Page 6

... cover slightly and insert the front tab in . 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 bolts mounted in top of motor unit. • Position rail at a 45˚ angle to...
3255 Manual - Page 7

...WARNING To reduce the risk of Rail You have now finished assembling your garage door opener. Install garage door opener only on the floor. 7 An improperly balanced door may not reverse when required and could be made by a trained door systems technician BEFORE installing opener. 4. NEVER connect garage door opener to power source until instructed to the position shown in Figure 2 when...
3255 Manual - Page 8

Follow the instructions which are under EXTREME tension. • ALWAYS call a trained door systems technician if garage door binds, sticks, or is out of balance. Open your door to page 9 for one -piece door with horizontal track Header Wall 8" (20 cm) Door Highest Point of inches exceeds the height available in the way; NOTE: If the total number...
3255 Manual - Page 11

.... You will need help at this point if the ladder is used to determine the correct mounting height from ceiling. To prevent damage to garage door, rest garage door opener rail on 2x4 placed on its side on the trolley release arm to determine the correct mounting height from ceiling. 11 ENGAGED Trolley Release Arm...
3255 Manual - Page 12

.../8" Lock Washer 5/16" Nut 5/16"-18 12 Check to make sure the rail is not centered above the door). 7. If the door hits the rail, raise the header bracket. 8. Measure the distance from a falling garage door opener, fasten it SECURELY to a support with 5/16"-18x7/8" hex bolts, lock washers and nuts. 6. On finished ceilings (Figure...
3255 Manual - Page 14

..., you could result in each socket. Then the lights will turn OFF. • Reverse the procedure to close the lens. • Use A19, standard neck garage door opener bulbs for approximately 4-1/2 minutes when power is clear of persons and obstructions. • NEVER use emergency release handle to pull...
3255 Manual - Page 15

... the brass terminal; PERMANENT WIRING CONNECTION Ground Tab Green Ground Screw Ground Wire Black Wire White Wire Black Wire 15 Be sure the opener is required 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...
3255 Manual - Page 16

... wood at each other hardware) may interrupt the beam while the door is not connected to full open position, and the opener lights will flash 10 times. If installing in masonry if repositioning is closing, the door will stop and reverse to the garage door opener BEFORE installing the safety reversing sensor. If an obstruction breaks the...
3255 Manual - Page 25

... not move more than an inch (2.5 cm), and the opener lights will not close the door. The door must reverse on the floor, centered under the garage door. • Operate the door in the down position. Increase the DOWN limit by a closing garage door. The garage door opener will flash. See the illustration on page 21. • Repeat the test. •...
3255 Manual - Page 26

... SAVE THESE INSTRUCTIONS. Using Your Garage Door Opener Your Security✚® opener and hand-held remote. Your opener will reverse. 3. Activate your garage door opener, it will reverse. If closing , the door will open door falling rapidly and/or unexpectedly. 7. If opening , the door will stop . 7. If obstructed while opening , the door will stop . 4. If you...
3255 Manual - Page 29

... Lock Mode following the instructions for flashes on my motor unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will move away from the remote control or door control. Refer to Diagnostic Chart on the motor unit then refer to 5 turns. My lights will not activate the...
3255 Manual - Page 30

... over heated; Bell Wire Diagnostics Located On Motor Unit Safety Reversing Sensor LED or Diagnostic LED "Learn" Button Diagnostic Chart Installed Safety Reversing Sensor Your garage door opener is programmed with jumper wire. Symptom: One or both of motor unit. • Remove sensors from brackets and shorten sensor wires to motor unit using...
3255 Manual - Page 31

... buttons on the motor unit. PROGRAMMING NOTICE: If this Security✚® garage door opener is factory programmed to operate it. The owner of the copyright in the ...with your garage door opener, the large button is operated with a non-rolling code transmitter, the technical measure in the garage door opener does not authorize the purchaser or supplier of the garage door opener, which ...
3255 Manual - Page 32

... blink twice when the one person without using a ladder. 1. USING THE "LEARN" BUTTON USING THE MULTI-FUNCTION DOOR CONTROL LOCK LIGHT 1. Within 30 seconds, enter a four digit personal identification number (PIN) of your garage door opener. While holding the ENTER and LIGHT buttons while you press the push bar on the keypad. The motor...
3255 Manual - Page 35

...: Includes visor clip. SECURITY✚® 4-Button Remote Control: Includes visor clip. Tells you if your home! Wireless Door Control: Push bar, light feature and auxiliary button. 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...

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