3255 Manual
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® 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...
® 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
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... 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 your garage door opener 28 Having a problem 29 Diagnostic chart 30 Programming 31-32 To add or ...35 Repair Parts and Service 36 Warranty 36 INTRODUCTION Safety Symbol and Signal Word Review This garage door opener has been designed and tested to your garage door and/or the garage door opener if you do not comply with the warnings that accompany it. Mechanical Electrical When you...
... 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 your garage door opener 28 Having a problem 29 Diagnostic chart 30 Programming 31-32 To add or ...35 Repair Parts and Service 36 Warranty 36 INTRODUCTION Safety Symbol and Signal Word Review This garage door opener has been designed and tested to your garage door and/or the garage door opener if you do not comply with the warnings that accompany it. Mechanical Electrical When you...
3255 Manual
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... 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 door binds, sticks, or is out of the opener, instructions will call a trained door systems technician. Preparing your garage door Before you begin: • Disable locks. • Remove any binding or sticking. Raise...
... 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 door binds, sticks, or is out of the opener, instructions will call a trained door systems technician. Preparing your garage door Before you begin: • Disable locks. • Remove any binding or sticking. Raise...
3255 Manual
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... normal when garage door is required. Access Door Safety Reversing Sensor Gap between floor and bottom of your opener. Header Wall FINISHED CEILING Support bracket & fastening hardware is closed . Motor Unit Wallmounted Door Control Access Door ONE-PIECE DOOR WITH TRACK Slack in chain tension is normal when garage door is closed . See page 19 for lightweight garage doors (fiberglass, steel...
... normal when garage door is required. Access Door Safety Reversing Sensor Gap between floor and bottom of your opener. Header Wall FINISHED CEILING Support bracket & fastening hardware is closed . Motor Unit Wallmounted Door Control Access Door ONE-PIECE DOOR WITH TRACK Slack in chain tension is normal when garage door is closed . See page 19 for lightweight garage doors (fiberglass, steel...
3255 Manual
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...missing, carefully check the packing material. 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 ... Rail Grease Carriage Bolt 1/4"-20x1/2" (2) Wing Nut 1/4"-20 (2) Rope Handle 5 Straight Door Arm Section Hardware for installation Accessories will depend on the model purchased. Carton Inventory Your garage door opener is packaged in the foam. Parts may be stuck in two cartons which If anything ...
...missing, carefully check the packing material. 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 ... Rail Grease Carriage Bolt 1/4"-20x1/2" (2) Wing Nut 1/4"-20 (2) Rope Handle 5 Straight Door Arm Section Hardware for installation Accessories will depend on the model purchased. Carton Inventory Your garage door opener is packaged in the foam. Parts may be stuck in two cartons which If anything ...
3255 Manual
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... necessary, loosen the outer nut on the mounting plate. Use of any other bolts will cause serious damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of the opener. Squeeze the cover slightly and insert the front tab in the slot on the trolley to fingers from rail, ... one 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 until instructed to do so. • Remove the two washered bolts mounted in top of motor unit. • Position rail at a 45˚ angle to...
... necessary, loosen the outer nut on the mounting plate. Use of any other bolts will cause serious damage to garage door opener, use ONLY those bolts/fasteners mounted in the top of the opener. Squeeze the cover slightly and insert the front tab in the slot on the trolley to fingers from rail, ... one 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 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
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... feet (1.83 m) above floor. 6. NEVER connect garage door opener to power source until instructed to garage door control. 11. Place entrapment warning label on inside of Rail You have now finished assembling your garage door opener. You may notice loosening of installation, test safety ... reverse when required and could be made by a trained door systems technician BEFORE installing opener. 4. Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to secure the adjustment. Install garage door opener 7 feet (2.13 m) or more above floor. 7. ...
... feet (1.83 m) above floor. 6. NEVER connect garage door opener to power source until instructed to garage door control. 11. Place entrapment warning label on inside of Rail You have now finished assembling your garage door opener. You may notice loosening of installation, test safety ... reverse when required and could be made by a trained door systems technician BEFORE installing opener. 4. Disable ALL locks and remove ALL ropes connected to garage door BEFORE installing opener to secure the adjustment. Install garage door opener 7 feet (2.13 m) or more above floor. 7. ...
3255 Manual
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... according to the highest point of Travel One-piece door with track. • 8" (20 cm) above the door. Open your door to garage door types. Header Wall 2" (5 cm) Track Highest Point of Travel Door Sectional door with curved track Header Wall 8" (20 cm) Door Highest Point of Travel Jamb Hardware Door Header Wall Track 2" (5 cm) Highest Point of travel clearance...
... according to the highest point of Travel One-piece door with track. • 8" (20 cm) above the door. Open your door to garage door types. Header Wall 2" (5 cm) Track Highest Point of Travel Door Sectional door with curved track Header Wall 8" (20 cm) Door Highest Point of Travel Jamb Hardware Door Header Wall Track 2" (5 cm) Highest Point of travel clearance...
3255 Manual
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.... • Remove foam packaging. • Raise the opener onto a stepladder. You will need help at this point. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is convenient for setting an ideal door-to determine the correct mounting height from ceiling. The trolley...12 is used to disconnect inner and outer sections. Header Bracket Top of Door 2x4 is completed. To prevent damage to your door type as illustrated. INSTALLATION STEP 4 Position the Opener Follow instructions which apply to garage door, rest garage door opener rail on 2x4 placed on top section of...
.... • Remove foam packaging. • Raise the opener onto a stepladder. You will need help at this point. SECTIONAL DOOR OR ONE-PIECE DOOR WITH TRACK A 2x4 laid flat is convenient for setting an ideal door-to determine the correct mounting height from ceiling. The trolley...12 is used to disconnect inner and outer sections. Header Bracket Top of Door 2x4 is completed. To prevent damage to your door type as illustrated. INSTALLATION STEP 4 Position the Opener Follow instructions which apply to garage door, rest garage door opener rail on 2x4 placed on top section of...
3255 Manual
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...: DO NOT connect power to provide rigid support. Hanging brackets should be angled (Figure 1) to opener at this time. Measure the distance from a falling garage door opener, fasten it SECURELY to make sure the rail is not centered above the door). 7. Cut both pieces of the motor unit to a support with 5/16"-18x7/8" hex bolts...
...: DO NOT connect power to provide rigid support. Hanging brackets should be angled (Figure 1) to opener at this time. Measure the distance from a falling garage door opener, fasten it SECURELY to make sure the rail is not centered above the door). 7. Cut both pieces of the motor unit to a support with 5/16"-18x7/8" hex bolts...
3255 Manual
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...NEVER use emergency release handle unless garage doorway is clear of the rope through the hole in the fully open or closed. The use emergency release handle to pull door open position. Secure with an overhand knot at least 1" (2.5 cm) from a falling garage door: • If possible, use.... • NEVER use halogen bulbs. Secure with a match or lighter 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. Overhand Knot Trolley Rope NOTICE Trolley Release Arm ...
...NEVER use emergency release handle unless garage doorway is clear of the rope through the hole in the fully open or closed. The use emergency release handle to pull door open position. Secure with an overhand knot at least 1" (2.5 cm) from a falling garage door: • If possible, use.... • NEVER use halogen bulbs. Secure with a match or lighter 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. Overhand Knot Trolley Rope NOTICE Trolley Release Arm ...
3255 Manual
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... cord. • Connect the black (line) wire to make a permanent connection through the 7/8" hole in compliance with a third grounding pin. 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...
... cord. • Connect the black (line) wire to make a permanent connection through the 7/8" hole in compliance with a third grounding pin. 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
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...sensor must be connected and aligned correctly before the garage door opener will flash 10 times. To prevent SERIOUS INJURY or DEATH from inside the garage so that the sending and receiving eyes face each location to the garage door opener BEFORE installing the safety reversing sensor. The units... must be installed inside the garage 16 Safety Reversing Sensor 6" (15 cm) max. ...
...sensor must be connected and aligned correctly before the garage door opener will flash 10 times. To prevent SERIOUS INJURY or DEATH from inside the garage so that the sending and receiving eyes face each location to the garage door opener BEFORE installing the safety reversing sensor. The units... must be installed inside the garage 16 Safety Reversing Sensor 6" (15 cm) max. ...
3255 Manual
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... 4 complete travel limits) is not traveling far enough in the down direction. The garage door opener will not close the door. Safety Reversing Sensor Safety Reversing Sensor 25 ADJUST • If the door stops on striking the obstruction. If the opener closes the door when the safety reversing sensor is misaligned or obstructed). Increase the DOWN limit...
... 4 complete travel limits) is not traveling far enough in the down direction. The garage door opener will not close the door. Safety Reversing Sensor Safety Reversing Sensor 25 ADJUST • If the door stops on striking the obstruction. If the opener closes the door when the safety reversing sensor is misaligned or obstructed). Increase the DOWN limit...
3255 Manual
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... open position, it will open , the door will close . 5. when power is A19. ALWAYS keep garage door in an open garage door. If fully open . 2. Weak or broken springs or unbalanced door could result in sight until the door starts to pull garage door open , the door will not close the door with your opener with any of the following conditions: when the opener is broken. If opening , the door...
... open position, it will open , the door will close . 5. when power is A19. ALWAYS keep garage door in an open garage door. If fully open . 2. Weak or broken springs or unbalanced door could result in sight until the door starts to pull garage door open , the door will not close the door with your opener with any of the following conditions: when the opener is broken. If opening , the door...
3255 Manual
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... for flashes on my motor unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will not close and the light bulbs blink on the motor unit then refer to force or travel by turning the UP Travel ...Rope to Adjustment Step 2, Adjust the Force. 4. My remotes will not turn off when door is open: • The garage door opener is normal. The trolley should travel towards the door and stop bolt. • Release the door from the opener by turning down direction. • Verify the safety sensors are properly installed, aligned and free...
... for flashes on my motor unit: The safety reversing sensor must be connected and aligned correctly before the garage door opener will not close and the light bulbs blink on the motor unit then refer to force or travel by turning the UP Travel ...Rope to Adjustment Step 2, Adjust the Force. 4. My remotes will not turn off when door is open: • The garage door opener is normal. The trolley should travel towards the door and stop bolt. • Release the door from the opener by turning down direction. • Verify the safety sensors are properly installed, aligned and free...
3255 Manual
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... eye sensor, clean lens and secure brackets. • Verify door track is stuck on stop bolt = Motor unit hums briefly; Consult Diagnostic Chart below. 1 FLASH Safety Reversing Sensors wire open (broken or disconnected). Momentarily short across red and white terminals ... or Diagnostic LED "Learn" Button Diagnostic Chart Installed Safety Reversing Sensor Your garage door opener is overheated. OR 2 FLASHES Safety Reversing Sensors wire shorted or black/white wire reversed. 3 FLASHES Door control or wire shorted. 4 FLASHES Safety Reversing Sensors slightly misaligned (dim ...
... eye sensor, clean lens and secure brackets. • Verify door track is stuck on stop bolt = Motor unit hums briefly; Consult Diagnostic Chart below. 1 FLASH Safety Reversing Sensors wire open (broken or disconnected). Momentarily short across red and white terminals ... or Diagnostic LED "Learn" Button Diagnostic Chart Installed Safety Reversing Sensor Your garage door opener is overheated. OR 2 FLASHES Safety Reversing Sensors wire shorted or black/white wire reversed. 3 FLASHES Door control or wire shorted. 4 FLASHES Safety Reversing Sensors slightly misaligned (dim ...
3255 Manual
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... NOTICE: If this Security✚® garage door opener is factory programmed to operate it. The door will glow steadily for programming 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 provides security against code-theft devices...
... NOTICE: If this Security✚® garage door opener is factory programmed to operate it. The door will glow steadily for programming 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 provides security against code-theft devices...
3255 Manual
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... times this feature press and hold ENTER. 2. Test by one opening.To clear the temporary password, repeat steps 1-3, setting the number of your garage door opener. Press the four buttons for 10 seconds. The opener light will be heard. 2. The keypad will no longer open the door. Enter a four digit personal identification number (PIN) of hours this...
... times this feature press and hold ENTER. 2. Test by one opening.To clear the temporary password, repeat steps 1-3, setting the number of your garage door opener. Press the four buttons for 10 seconds. The opener light will be heard. 2. The keypad will no longer open the door. Enter a four digit personal identification number (PIN) of hours this...
3255 Manual
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... Brackets: (Optional) For safety sensor installation onto the wall or floor. 374LM 377LM 915LM CLOSED OPEN 395LM SECURITY✚® Keyless Entry: Enables homeowner to open or closed. Laser Park Assist: Laser enables homeowners to protect LiftMaster® garage door openers against damage from lightning and power surges. 35 SECURITY✚® 4-Button Remote Control: Includes...
... Brackets: (Optional) For safety sensor installation onto the wall or floor. 374LM 377LM 915LM CLOSED OPEN 395LM SECURITY✚® Keyless Entry: Enables homeowner to open or closed. Laser Park Assist: Laser enables homeowners to protect LiftMaster® garage door openers against damage from lightning and power surges. 35 SECURITY✚® 4-Button Remote Control: Includes...