LiftMaster 8557 8557 Elite Series Users Guide Manual - Page 8

Operation To Open the Door Manually DISCONNECT THE TROLLEY 1 The door should be fully closed if possible. 2 Pull down on the emergency release handle. To prevent possible SERIOUS INJURY or DEATH from a falling garage door: • If possible, use emergency release handle to disengage trolley ONLY when garage door is CLOSED. Weak or broken springs or unbalanced door could result in an open door falling rapidly and/or unexpectedly. • NEVER use emergency release handle unless garage doorway is clear of persons and obstructions. • NEVER use handle to pull door open or closed. If rope knot becomes untied, you could fall. Battery Backup (If applicable) RECONNECT THE TROLLEY The lockout feature prevents the trolley from reconnecting automatically. 1 Pull the emergency release handle down and back (toward the opener). The door can then be raised and lowered manually as often as necessary. 2 To disengage the lockout feature, pull the handle straight down. The trolley will reconnect on the next UP or DOWN operation, either manually or by using the door control or remote control. The battery backup system allows access in and out of your garage, even when the power is out. When the garage door opener is operating on battery power, the garage door opener will run slower, the light will not function, the Battery Status LED will glow solid orange, and a beep will sound approximately every 2 seconds. The battery charges when the garage door opener is plugged into a 110Vac electrical outlet that has power and requires 24 hours to fully charge. A fully charged battery supplies 12Vdc to the garage door opener for one to two days of normal operation during an electrical power outage. After the electrical power has been restored, the battery will recharge within 24 hours. The battery will last approximately 1 to 2 years with normal usage. Instructions for replacement are provided with the battery. To obtain maximum battery life and prevent damage, disconnect the battery when the garage door opener is unplugged for an extended period of time. NOTE: When the garage door opener is in battery backup mode the garage door opener lights, Timer-to-Close, and Remote Close features are unavailable. BATTERY STATUS LED NOTE: The Battery Status LED is most visible with the garage door opener light off. Battery does not have to be fully charged to operate the garage door opener. GREEN LED: All systems are normal. • A solid green LED light indicates the battery is fully charged. • A flashing green LED indicates the battery is being charged. Battery Status LED ORANGE LED: The garage door opener has lost power and is in battery backup mode. • A solid orange LED with beep, sounding approximately every 2 seconds, indicates the garage door opener is operating on battery power. • A flashing orange LED with beep, sounding every 30 seconds, indicates the battery is low. 8 RED LED: The garage door opener's 12V battery needs to be replaced. • A solid red LED with beep, sounding every 30 seconds, indicates the garage door opener needs servicing. Please call for replacement battery to allow your system to operate during a power outage.