8355 Manual
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... . . . . . 32 Maintenance 32 Troubleshooting 33-34 Accessories 35 Warranty 36 Repair Parts 37-38 www.liftmaster.com The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 PREMIUM Series Belt Drive Garage Door Opener Model 8355 - 1/2 hp FOR RESIDENTIAL USE ONLY ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten...
... . . . . . 32 Maintenance 32 Troubleshooting 33-34 Accessories 35 Warranty 36 Repair Parts 37-38 www.liftmaster.com The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 PREMIUM Series Belt Drive Garage Door Opener Model 8355 - 1/2 hp FOR RESIDENTIAL USE ONLY ■ Please read this manual and the enclosed safety materials carefully! ■ Fasten...
8355 Manual
Page 2
... locks and remove ALL ropes connected to garage door BEFORE installation and operating garage door opener to avoid entanglement. 5/32 3/16 5/16 12 To prevent damage to garage door and opener: • ALWAYS disable locks BEFORE installing and operating the opener. • ONLY operate garage door opener at 120 V, 60 Hz to avoid ... be installed within 4 feet (1.2 m) to the left or right of the door center. Read the warnings carefully. Check the Door 1. If your garage door and/or the garage door opener if you do not comply with the instructions and warnings contained in place, supported...
... locks and remove ALL ropes connected to garage door BEFORE installation and operating garage door opener to avoid entanglement. 5/32 3/16 5/16 12 To prevent damage to garage door and opener: • ALWAYS disable locks BEFORE installing and operating the opener. • ONLY operate garage door opener at 120 V, 60 Hz to avoid ... be installed within 4 feet (1.2 m) to the left or right of the door center. Read the warnings carefully. Check the Door 1. If your garage door and/or the garage door opener if you do not comply with the instructions and warnings contained in place, supported...
8355 Manual
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...product may be attached to the accessory and are for these accessories will be included with your garage door opener. Trolley G. Sprocket cover with white and white/black wire attached: Sending Sensor (1) Receiving Sensor...Bolt 1/4"-20 x 1/2" (2) Wing Nut 1/4"-20 (2) Door Control Hardware Screw 6AB x 1" (2) Screw 6-32 x 1" (2) Drywall Anchors (2) Insulated Staples 3 Depending on the garage door opener model purchased. Header bracket B. Curved door arm E. Straight door arm A B CF G D E F. Garage door opener K J. The Protector System® Safety reversing sensors ...
...product may be attached to the accessory and are for these accessories will be included with your garage door opener. Trolley G. Sprocket cover with white and white/black wire attached: Sending Sensor (1) Receiving Sensor...Bolt 1/4"-20 x 1/2" (2) Wing Nut 1/4"-20 (2) Door Control Hardware Screw 6AB x 1" (2) Screw 6-32 x 1" (2) Drywall Anchors (2) Insulated Staples 3 Depending on the garage door opener model purchased. Header bracket B. Curved door arm E. Straight door arm A B CF G D E F. Garage door opener K J. The Protector System® Safety reversing sensors ...
8355 Manual
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...#8x3/8" Lock Nut To avoid SERIOUS damage to finger from moving garage door opener: • ALWAYS keep hand clear of the garage door opener. 1.2 Align the rail and the styrofoam over the garage door opener sprocket and attach with hex screws. Fasten the rail with the ...Position the belt around the garage door opener sprocket. 1.5 Attach the sprocket cover over the sprocket. Assembly 1 Attach the rail to the garage door opener To avoid possible SERIOUS INJURY to garage door opener, use the bolts removed from the garage door opener. Place the garage door opener on the packing material to...
...#8x3/8" Lock Nut To avoid SERIOUS damage to finger from moving garage door opener: • ALWAYS keep hand clear of the garage door opener. 1.2 Align the rail and the styrofoam over the garage door opener sprocket and attach with hex screws. Fasten the rail with the ...Position the belt around the garage door opener sprocket. 1.5 Attach the sprocket cover over the sprocket. Assembly 1 Attach the rail to the garage door opener To avoid possible SERIOUS INJURY to garage door opener, use the bolts removed from the garage door opener. Place the garage door opener on the packing material to...
8355 Manual
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... www.liftmaster.com for installation instructions. 6 DO NOT enable the Timer-to avoid accidental release. 7. To be enabled ONLY when operating a sectional door. An improperly balanced door may NOT reverse when required and could be made by a trained door systems technician BEFORE installing opener. 4. NOTE: If you are installing the garage door opener on a one -piece or swinging garage doors...
... www.liftmaster.com for installation instructions. 6 DO NOT enable the Timer-to avoid accidental release. 7. To be enabled ONLY when operating a sectional door. An improperly balanced door may NOT reverse when required and could be made by a trained door systems technician BEFORE installing opener. 4. NOTE: If you are installing the garage door opener on a one -piece or swinging garage doors...
8355 Manual
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...masonry. • NEVER try to loosen, move or adjust garage door, springs, cables, pulleys, brackets, or their hardware, ALL of which are installing the garage door opener on a one -piece or swinging garage doors. An unbalanced garage door might NOT reverse when required. This height will provide travel... NOT enable the Timer-to-Close functionality if operating either one -piece door, visit www.liftmaster.com for installation instructions. 1.1 Close the door and mark the inside vertical centerline of the garage door. 1.2 Extend the line onto the header wall above the high point....
...masonry. • NEVER try to loosen, move or adjust garage door, springs, cables, pulleys, brackets, or their hardware, ALL of which are installing the garage door opener on a one -piece or swinging garage doors. An unbalanced garage door might NOT reverse when required. This height will provide travel... NOT enable the Timer-to-Close functionality if operating either one -piece door, visit www.liftmaster.com for installation instructions. 1.1 Close the door and mark the inside vertical centerline of the garage door. 1.2 Extend the line onto the header wall above the high point....
8355 Manual
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...and outer trolley. Connected Disconnected 9 Ring Fastener Clevis Pin 5/16" X 2-3/4" HARDWARE Clevis Pin 5/16" x 2-3/4" Ring Fastener 4 Position the garage door opener To prevent damage to the header bracket 3.1 Align the rail with the ring fastener. The trolley can remain disconnected until instructed. Insert the clevis...the header bracket and rail. NOTE: A 2x4 is ideal for the garage door opener. NOTE: If the door hits the trolley when it is not tall enough you will need help at this point. 4.2 Fully open the door and place a 2x4 (laid flat) under the rail. Secure with...
...and outer trolley. Connected Disconnected 9 Ring Fastener Clevis Pin 5/16" X 2-3/4" HARDWARE Clevis Pin 5/16" x 2-3/4" Ring Fastener 4 Position the garage door opener To prevent damage to the header bracket 3.1 Align the rail with the ring fastener. The trolley can remain disconnected until instructed. Insert the clevis...the header bracket and rail. NOTE: A 2x4 is ideal for the garage door opener. NOTE: If the door hits the trolley when it is not tall enough you will need help at this point. 4.2 Fully open the door and place a 2x4 (laid flat) under the rail. Secure with...
8355 Manual
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... representative installations are not provided. This bracket and fastening hardware are shown. Yours may be used if installing ANY brackets into masonry. Installation 5 Hang the garage door opener To avoid possible SERIOUS INJURY from each side of the motor unit to the structural support. 5.2 Cut both pieces of the hanging bracket to required...
... representative installations are not provided. This bracket and fastening hardware are shown. Yours may be used if installing ANY brackets into masonry. Installation 5 Hang the garage door opener To avoid possible SERIOUS INJURY from each side of the motor unit to the structural support. 5.2 Cut both pieces of the hanging bracket to required...
8355 Manual
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...trolley back (away from the curved door arm. trolley will re-engage automatically when the garage door opener is hanging down too far, you may cut 6 inches (15 cm) from the solid end. Attach with the curved door arm. Trolley release arm 13 the door) about 2" (5 cm). Select ...18 x 7/8" NOTE: If the holes do not line up, reverse the 9.5 Pull the emergency release handle straight door arm. Select two aligned holes (as toward the garage door opener until the far apart as possible) and attach using the trolley release arm is horizontal. The bolts, nuts and lock...
...trolley back (away from the curved door arm. trolley will re-engage automatically when the garage door opener is hanging down too far, you may cut 6 inches (15 cm) from the solid end. Attach with the curved door arm. Trolley release arm 13 the door) about 2" (5 cm). Select ...18 x 7/8" NOTE: If the holes do not line up, reverse the 9.5 Pull the emergency release handle straight door arm. Select two aligned holes (as toward the garage door opener until the far apart as possible) and attach using the trolley release arm is horizontal. The bolts, nuts and lock...
8355 Manual
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... 5 feet (1.5 m), and away from the moving parts of the door at the garage door opener in sight until completely closed. NOTE: Older LiftMaster door controls To prevent possible SERIOUS INJURY or DEATH from the wall. closing garage door: and third party products are no obstructions to protrude from a closing garage door. can be seen clearly, is properly adjusted, and there...
... 5 feet (1.5 m), and away from the moving parts of the door at the garage door opener in sight until completely closed. NOTE: Older LiftMaster door controls To prevent possible SERIOUS INJURY or DEATH from the wall. closing garage door: and third party products are no obstructions to protrude from a closing garage door. can be seen clearly, is properly adjusted, and there...
8355 Manual
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...over the screw and slide down into place. 1.6 Lift the push bar up and mark the top hole. 1.7 Remove the door control from the door control to the garage door opener HARDWARE Insulated Staple (Not shown) 2.1 Run the white and red/white wire from the wall and drill a 5/32 inch ...). Staple 15 DRYWALL Drywall Anchor Screw 6AB x 1" Screw 6-32 x 1" GANG BOX 2 Wire the door control to the garage door opener. Install the Door Control k 1.5 Position the bottom hole of the door control over the screw and slide down into place. Attach the top screw. RED WHITE WHITE GREY PRE-...
...over the screw and slide down into place. 1.6 Lift the push bar up and mark the top hole. 1.7 Remove the door control from the door control to the garage door opener HARDWARE Insulated Staple (Not shown) 2.1 Run the white and red/white wire from the wall and drill a 5/32 inch ...). Staple 15 DRYWALL Drywall Anchor Screw 6AB x 1" Screw 6-32 x 1" GANG BOX 2 Wire the door control to the garage door opener. Install the Door Control k 1.5 Position the bottom hole of the door control over the screw and slide down into place. Attach the top screw. RED WHITE WHITE GREY PRE-...
8355 Manual
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... so beam is NO HIGHER than 6 inches (15 cm) above floor The sleep mode shuts the garage door opener down direction. The garage door opener will move in the down until the garage door opener has completed 5 cycles upon power up. above the floor and the light beam is fully closed. ...DEATH from closing , the door will stop and reverse to the full open position, and the garage door opener lights will enter sleep mode when the door is unobstructed. as the light bulb turns off and whenever the garage door opener lights turn on either side of the door. • Sensors are facing...
... so beam is NO HIGHER than 6 inches (15 cm) above floor The sleep mode shuts the garage door opener down direction. The garage door opener will move in the down until the garage door opener has completed 5 cycles upon power up. above the floor and the light beam is fully closed. ...DEATH from closing , the door will stop and reverse to the full open position, and the garage door opener lights will enter sleep mode when the door is unobstructed. as the light bulb turns off and whenever the garage door opener lights turn on either side of the door. • Sensors are facing...
8355 Manual
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... to the floor using concrete anchors (not provided). (not provided) IGWnsaairdlalege 1.3C Slide the carriage bolt into the slot on the garage door opener. Twist the white/black wires together. 2.3A Insert the white wires into the grey terminal on both sensors to the already has ...wires installed for the safety reversing garage door opener. Twist the white wires together. To insert or remove the wires from both sensors should point toward each sensor. Wing Nut 1/4" - ...
... to the floor using concrete anchors (not provided). (not provided) IGWnsaairdlalege 1.3C Slide the carriage bolt into the slot on the garage door opener. Twist the white/black wires together. 2.3A Insert the white wires into the grey terminal on both sensors to the already has ...wires installed for the safety reversing garage door opener. Twist the white wires together. To insert or remove the wires from both sensors should point toward each sensor. Wing Nut 1/4" - ...
8355 Manual
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...INSTALLATION 2.1B Cut the end of the safety reversing sensor wire, making sure the colors correspond for example) Pre-installed wires 2.4B At the garage door opener, strip 7/16 inch (11 mm) of insulation from each end of the wires previously chosen for each sensor. Twist the like-colored wires ...together. 2.5B Insert the wires connected to the white safety sensor wires to the grey terminal on the garage door opener. For example, the white wire would connect to the yellow wire and the white/black wire would connect to the sensor wires with a...
...INSTALLATION 2.1B Cut the end of the safety reversing sensor wire, making sure the colors correspond for example) Pre-installed wires 2.4B At the garage door opener, strip 7/16 inch (11 mm) of insulation from each end of the wires previously chosen for each sensor. Twist the like-colored wires ...together. 2.5B Insert the wires connected to the white safety sensor wires to the grey terminal on the garage door opener. For example, the white wire would connect to the yellow wire and the white/black wire would connect to the sensor wires with a...
8355 Manual
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... hole in compliance with a third grounding pin. If the plug doesn't fit into a grounding type outlet. This plug will only fit into 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...Green Ground Screw Ground Wire White Wire Black Wire Black Wire 21 Power 1 Connect Power To avoid installation difficulties, do not activate the garage door opener at this time. To reduce the risk of the motor unit (according to local code): 1.1B Remove the motor unit cover screws ...
... hole in compliance with a third grounding pin. If the plug doesn't fit into a grounding type outlet. This plug will only fit into 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...Green Ground Screw Ground Wire White Wire Black Wire Black Wire 21 Power 1 Connect Power To avoid installation difficulties, do not activate the garage door opener at this time. To reduce the risk of the motor unit (according to local code): 1.1B Remove the motor unit cover screws ...
8355 Manual
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...SENDING SENSOR RECEIVING SENSOR IF THE AMBER LED ON THE SENDING SENSOR IS NOT GLOWING: Make sure there is closing, the door will reverse and the garage door opener lights will flash ten times. Make sure the sensors are aligned. Amber LED If the receiving sensor is wired correctly If ...blink. 22 The LEDs in both sensors are glowing steadily. When the light beam is obstructed or misaligned while the door is power to the garage door opener. If the door is already open, it will not close if the sensors have not been installed and aligned correctly. 2.1 Check to grey terminal. Power...
...SENDING SENSOR RECEIVING SENSOR IF THE AMBER LED ON THE SENDING SENSOR IS NOT GLOWING: Make sure there is closing, the door will reverse and the garage door opener lights will flash ten times. Make sure the sensors are aligned. Amber LED If the receiving sensor is wired correctly If ...blink. 22 The LEDs in both sensors are glowing steadily. When the light beam is obstructed or misaligned while the door is power to the garage door opener. If the door is already open, it will not close if the sensors have not been installed and aligned correctly. 2.1 Check to grey terminal. Power...
8355 Manual
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... reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. • Incorrect adjustment of garage door travel limits will interfere with proper operation of the garage door opener and are used to program the travel. 23 UP (Open) DOWN (Close) PROGRAMMING BUTTONS UP Button Adjustment Button DOWN Button The adjustments allow you...
... reversal system, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. • Incorrect adjustment of garage door travel limits will interfere with proper operation of the garage door opener and are used to program the travel. 23 UP (Open) DOWN (Close) PROGRAMMING BUTTONS UP Button Adjustment Button DOWN Button The adjustments allow you...
8355 Manual
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... travel limits will begin to the programmed DOWN position. The garage door opener lights will flash twice and the UP Button will interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on contact with proper operation of garage door travel to flash. Adjustments 1 Program the Travel Without a properly... flash twice and flash and/or a beep is used to move the door up and down as needed . 1.5 Once the door is in the 1.6 Press and release the UP Button. If the garage door opener lights are flashing 10 times during the steps for Program the Travel, the...
... travel limits will begin to the programmed DOWN position. The garage door opener lights will flash twice and the UP Button will interfere with 1-1/2" (3.8 cm) high object (or 2x4 laid flat) on contact with proper operation of garage door travel to flash. Adjustments 1 Program the Travel Without a properly... flash twice and flash and/or a beep is used to move the door up and down as needed . 1.5 Once the door is in the 1.6 Press and release the UP Button. If the garage door opener lights are flashing 10 times during the steps for Program the Travel, the...
8355 Manual
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... a 1-1/2 inch (3.8 cm) board (or a 2x4 laid flat) on the floor, centered under the garage door. 2.2 Press the remote control push button to Adjustment Step 1). If the garage door opener closes the door when the safety reversing sensor is misaligned or obstructed). Place the garage door opener carton in either safety reversing sensor is off (alerting you to the fact...
... a 1-1/2 inch (3.8 cm) board (or a 2x4 laid flat) on the floor, centered under the garage door. 2.2 Press the remote control push button to Adjustment Step 1). If the garage door opener closes the door when the safety reversing sensor is misaligned or obstructed). Place the garage door opener carton in either safety reversing sensor is off (alerting you to the fact...
8355 Manual
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...ANY service or maintenance. 14. ALL repairs to adjust the garage door opener properly increases the risk of SEVERE INJURY or DEATH: 1. DO NOT enable the Timer-to disengage trolley ONLY when garage door is properly adjusted, and there are under EXTREME tension, ...ONLY when operating a sectional door. 16. The door could fall. 9. NO ONE SHOULD GO UNDER A STOPPED, PARTIALLY OPENED DOOR. 6. NEVER permit children to pull garage door open . ALWAYS keep garage door in SEVERE INJURY or DEATH. 12. Use caution when using this release with garage door control push buttons or remote...
...ANY service or maintenance. 14. ALL repairs to adjust the garage door opener properly increases the risk of SEVERE INJURY or DEATH: 1. DO NOT enable the Timer-to disengage trolley ONLY when garage door is properly adjusted, and there are under EXTREME tension, ...ONLY when operating a sectional door. 16. The door could fall. 9. NO ONE SHOULD GO UNDER A STOPPED, PARTIALLY OPENED DOOR. 6. NEVER permit children to pull garage door open . ALWAYS keep garage door in SEVERE INJURY or DEATH. 12. Use caution when using this release with garage door control push buttons or remote...