Home » LiftMaster » Garage Door Openers » LiftMaster 3245

LiftMaster 3245 Support Question

Find answers below for this question about LiftMaster 3245.
Need a LiftMaster 3245 manual? We have 1 online manual for this item!

LiftMaster Overview Questions Manuals Reviews Videos Research

Question posted by keninabq on November 26th, 2011

Wall Unit

Remotes and keypad will operate the motor to raise and lower door, however, the wall unit will not operate the door. Recently changed the sensor board and suspect I did not rewire the control correctly.

I Know the Answer!

I have the same question
Request More Information

Current Answers

There are currently no answers that have been posted for this question.
Be the first to post an answer!

Remember that you can earn up to 1,100 points for every answer you submit. The better the quality of your answer, the better chance it has to be accepted.

Related 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...

3255 Manual - Page 2

... 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 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...

3255 Manual - Page 4

... when garage door is closed. Motor Unit Vertical Centerline of Safety door must not exceed 1/4" (6 mm). See page 12. Motor Unit Wallmounted Door Control Access Door ONE-PIECE DOOR WITH TRACK Slack in chain tension is normal when garage door is required. See page 19 for lightweight garage doors (fiberglass, steel, aluminum, door with the installation of your opener. Header Wall...

3255 Manual - Page 5

... Your garage door opener is packaged in the foam. is missing, carefully check the packing material. Parts may be stuck in two cartons which If anything is also listed below . 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...

3255 Manual - Page 6

...to garage door opener, use ONLY those bolts/fasteners mounted in the top of sprocket while operating opener. • Securely attach sprocket cover BEFORE operating. ...garage door opener: • ALWAYS keep hand clear of the opener. Use of the washered bolts part way in. ASSEMBLY STEP 1 Attach the Rail to the Motor Unit To avoid installation difficulties, do not run the garage door opener...

3255 Manual - Page 7

... normal. WARNING Check for proper tension and readjust chain if necessary. An improperly balanced door may not reverse when required and could be made by a trained door systems technician BEFORE installing opener. 4. Install wall-mounted garage door control: • within sight of the garage door. • out of reach of children at its midpoint, re-tighten the inner nut...

3255 Manual - Page 8

... for one -piece door with horizontal track Header Wall 8" (20 cm) Door Highest Point of Garage Door 2x4 OPTIONAL CEILING MOUNT FOR HEADER BRACKET Structural Supports Level (optional) Installation procedures vary according to structural supports as shown. Open your garage, use lag screws (not provided) to securely fasten the 2x4 to garage door types. Close the door and mark the...

3255 Manual - Page 10

... the bracket holes and join with a clevis pin as a protective base. Header Wall Header Bracket Chain Pulley Bracket INSTALLATION STEP 3 Attach the Rail to the Header Bracket • Position the opener on a temporary support to allow the rail to secure. Garage Door Ring Fastener Rail Header Bracket Clevis Pin 5/16"x2-3/4" Chain Pulley Bracket...

3255 Manual - Page 11

... be level with the top of the motor unit. Rail Door 2x4 is used to determine the correct mounting height from ceiling. To prevent damage to your door type as illustrated. You will need help at this point. INSTALLATION STEP 4 Position the Opener Follow instructions which apply to garage door, rest garage door opener rail on 2x4 placed on top section...

3255 Manual - Page 12

...garage. Hanging brackets should be different. This bracket and fastening hardware are shown. Measure the distance from a falling garage door opener, fasten it SECURELY to structural supports of the motor unit...to make sure the rail is not centered above the door). 7. Check to provide rigid support. Operate the door manually. Concrete anchors MUST be used if installing any ...

3255 Manual - Page 13

... parts of door. • NEVER permit children to motor unit. Use insulated staples to secure wire in sight until the sensor beam is not heard when pressing the push bar, loosen the two mounting screws or relocate the door control to a smoother surface. 3. (Standard installation only) Run bell wire up wall and across ceiling to operate or play...

3255 Manual - Page 15

... BEFORE removing cover to the screw on the brass terminal; 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 the top of electric shock, your local code, refer to the...

3255 Manual - Page 16

... Sensor 6" (15 cm) max. The sending eye (with an amber indicator light) transmits an invisible light beam to a solid surface such as the sun never shines directly into the receiving eye lens. If an obstruction breaks the light beam while the door is necessary. The units must be connected and aligned correctly before the garage door opener...

3255 Manual - Page 25

... the unit continues to fail the Safety Reverse Test, call for a trained door systems technician. ADJUSTMENT STEP 3 Test the Safety Reversal System TEST • With the door fully open the door. • Place the opener carton in the path of the door. • Press the remote control push button to close from a remote if the indicator light in either sensor is...

3255 Manual - Page 26

... or remote controls. 3. If closing , the door will close from a hand-held Remote Control: Hold the large push button down until the door starts to cables, spring assemblies and other control may be made , the safety reversal system MUST be tested every month. If the obstruction interrupts the sensor beam, the opener lights will reverse. NEVER permit children to garage door opener...

3255 Manual - Page 27

... when garage door is activated. To disengage the lockout feature, pull the handle straight down on the motor unit panel is CLOSED. Weak or broken springs or unbalanced door could fall. Press again to turn it 's opening. The door can be changed to 1-1/2, 2-1/2, or 3-1/2 minutes as necessary. It will also turn off sooner. The door should be raised and lowered...

3255 Manual - Page 29

...; Manually check door for flashes on motor unit then refer to 5 turns. My door reverses for Using the Wall-Mounted Door Control. • Reprogram remotes following page. 2. This feature activates the light on my motor unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will not activate the door: • Verify your door, check diagnostic...

3255 Manual - Page 30

... Safety Reversing Sensor Your garage door opener is firmly secured to wall and does not move. Unplug to reset. Symptom: One or both of times then pause signifying it is still flashing 5 times and motor unit moves 6-8" (15-20 cm), replace RPM sensor. • If motor unit doesn't operate, motor unit is not lit on door control. • Inspect door control/wires for the sensors. OR...

3255 Manual - Page 31

...clicks will be programmed to operate with your hand-held remote control. PROGRAMMING NOTICE: If this Security✚® garage door opener is operated with your garage door opener, the large button is factory programmed to operate it. Press and hold the button on the hand-held ). 4. Continue holding the remote button, press and hold the "learn" button on motor unit until the learn...

3255 Manual - Page 35

... wall or floor. 374LM 377LM 915LM CLOSED OPEN 395LM SECURITY✚® Keyless Entry: Enables homeowner to a programmable number of hours or entries. 370LM 378LM Garage Door Monitor: Security for the largest door of your garage door is designed to protect LiftMaster® garage door openers against damage from outside by adding additional sensor modules. 975LM Remote Light Control...