Leave this User’s Guide with the homeowner. Write down the following information for future reference: www.liftmaster.com Serial Number: The Chamberlain Group, Inc. 845 Larch Avenue Elmhurst, Illinois 60126-1196 Date of Purchase: The images throughout this manual are for reference and your product may look different.
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WARNING Important Safety Instructions Safety Symbol and Signal IMPORTANT INSTALLATION INSTRUCTIONS Word Review This garage door opener has been designed WARNING WARNING and tested to offer safe service provided it is installed, operated, maintained and tested in strict accordance with the instructions To reduce the risk of SEVERE INJURY or DEATH: and warnings contained in this manual.
WARNING Important Safety Instructions IMPORTANT SAFETY INSTRUCTIONS WARNING WARNING To reduce the risk of SEVERE INJURY or DEATH: 10. Safety reversal system MUST be tested every month. Garage 1. READ AND FOLLOW ALL WARNINGS AND INSTRUCTIONS. door MUST reverse on contact with 1-1/2" high (3.8 cm) 2.
Operation THE PROTECTOR SYSTEM ® (SAFETY REVERSING SENSORS) Your garage door opener is equipped with features to provide you with greater control over When properly connected and aligned, the safety reversing sensors will detect an obstruction your garage door operation. in the path of the infrared beam.
Operation The following features are accessible by lifting up the push bar: Using the Door Control LEARN A DEVICE SYNCHRONIZE THE DOOR CONTROL Any compatible remote controls or wireless keyless entries can be programmed to the To synchronize the door control to the garage door opener, press the push bar until the garage door opener by pressing the LEARN button on the Multi-Function Control Panel.
Operation Programming - Multi-Function Control Panel Features Lock NOTE: Your remote controls will NOT work when LOCK mode is active however your keyless entry will still allow access to your garage. Command Activate: Press and hold the LOCK button for 2 seconds. The command LED will flash as long as the lock feature is activated and your handheld remote control will not operate your door at this time.
Operation Programming - Remote Controls Your garage door opener has been programmed at the factory to operate with your remote control. Older LiftMaster remote controls are NOT compatible. Programming can be done through the door control or the Learn button on the garage door opener. To program additional remote controls refer to the instructions provided with the additional remote controls or visit ®...
Operation To Open the Door Manually DISCONNECT THE TROLLEY The door should be fully closed if possible. Pull down on the emergency release handle. To prevent possible SERIOUS INJURY or DEATH from a falling garage door: RECONNECT THE TROLLEY • If possible, use emergency release handle to disengage trolley ONLY when garage door is CLOSED.
Adjustment Introduction Your garage door opener is designed with electronic controls to make setup and adjustments easy. The adjustments allow Without a properly installed safety you to program where the door will stop in reversal system, persons (particularly the open (UP) and close (DOWN) position. small children) could be SERIOUSLY The electronic controls sense the amount of INJURED or KILLED by a closing...
Adjustment Program the Travel Without a properly installed safety 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 safety reversal system. •...
Adjustment Test the Safety Reversal System If the door stops and does not reverse on With the door fully open, place Press the remote control push the obstruction, increase the down travel a 1-1/2 inch (3.8 cm) board button to close the door. The door (refer to Adjustment Step 1).
Maintenance The Remote Control Battery EVERY MONTH • Manually operate door. If it is unbalanced or binding, call a trained door systems technician. • Check to be sure door opens and closes fully. Adjust if necessary, see page 10. • Test the safety reversal system. Adjust if necessary, see page 11. To prevent possible SERIOUS INJURY or DEATH: EVERY YEAR •...
Troubleshooting Diagnostic Chart Your garage door opener is programmed with self-diagnostic capabilities. The UP and DOWN arrows on the garage door opener will fl ash the diagnostic codes. DIAGNOSTIC CODE SYMPTOM SOLUTION Up arrow Down arrow Flash(es) Flash(es) The garage door opener will not close and the light Safety sensors are not installed, connected, or wires may be cut.
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Troubleshooting Diagnostic Chart DIAGNOSTIC CODE SYMPTOM SOLUTION Up arrow Down arrow Flash(es) Flash(es) Door is moving stops or reverses. Manually open and close the door. Check for binding or obstructions, such as a broken spring or door lock, correct as needed. If the door is binding or sticking contact a trained door systems technician.
Repair Parts NOTE: For additional parts not shown, visit www.liftmaster.com to download or print the full owner’s manual. DESCRIPTION PART NUMBER The products illustrated in the instructions are for reference. Your product may look different. 1 Light Lens 108D36 2 Receiver Logic Board 045ACT 3 Travel Module 41D7742-7...
FOUR YEAR MOTOR LIMITED WARRANTY The Chamberlain Group, Inc. (“Seller”) warrants to the first retail purchaser of this product, for the residence in which this product is originally installed, that it is free from defects in materials and/or workmanship for a period of one year from the date of purchase, except that the motor is warranted to be free from defects in materials and/or workmanship for a period of four years from the date of purchase.