To Open The Door Manually; Battery Backup - Chamberlain 8355 User Manual

Operation

To Open the Door Manually

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)
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 fl ashing green LED indicates the battery is being
charged.
Battery Status LED
DISCONNECT THE TROLLEY
1
The door should be fully
closed if possible.
2
Pull down on the emergency
release handle.
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.
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 fl ashing orange LED with beep, sounding every 30
seconds, indicates the battery is low.
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.
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