Chamberlain door opener - Manual (Page 24)

24
RESETTING FACTORY DEFAULTS - CLEARING MEMORY
To reset most of the user installed settings back to factory
defaults:
1. Turn the selector dial to DIAGNOSTIC.
2. Press and hold the STOP button for 5 seconds. The MAS LED
will flash momentarily when the factory defaults have been
restored.
3. Return the selector dial to the desired wiring type.
Factory Defaults:
a. Timer to close = 0 seconds
b. CPS-L photo eyes = unlearned
c. The Mid Stop is deactivated
d. The Maintenance Alert System is deactivated
e. The Maximum Run Timer is set to 90 seconds
f. Dealer Mode is deactivated
g. Restoring the operator to Factory Default will also disable this
feature. The remote controls will still be learned.
NOTE: Life of Operator feature (Odometer/Cycle Counter) and
programmed remote controls are not cleared.
Operation will vary
depending on
wiring type
SELECTOR DIAL
RED/GREEN WARNING LIGHT CARD
Feature: The Red/Green warning light card flashes a warning light
for 10 seconds prior to the Timer to Close activating the door to
close.
Benefit: Advanced warning of the door closing helps prevent
traffic collisions with the door.
Light Control Module Operation: The green lights on the OPTION
BOARD will turn on if the board is seated properly and the power
is on. When the door reaches the full open limit or mid stop, the
timer circuit and the green lamp holder will be activated. (Green
lamp will not be activated if timer setting is less than 10
seconds.) The red lamp holder will receive power as indicated at
right.
Requirements: Must have the LiftMaster Red/Green warning light
kit RDGRNCARD and must have at least one of the following
safety devices attached: CPS-L, CPS-LN4 or CPS3. See Red/
Green warning light instructions for further details.
TIMER SETTING RED LAMP HOLDER RECEIVES POWER
Timer setting equals
zero Activates when the door closes and until
close limit is activated
Greater than 10
seconds 10 seconds before door starts to close
and until close limit is activated
Less than or equal
to 10 seconds Activates when the door reaches the open
limit or mid stop
The red lamp holder receives power when
the door opens and remains activated if
the door is stopped manually before
reaching the mid stop or the open limit
O P T I O N A L P R O G R A M M I N G