Chamberlain WD952LD - Manual (Page 28)

28
ADJUSTMENT STEP 2
Setting the Force
The force setting button is located on the back panel
of the motor unit. The force setting measures the
amount of force required to open and close the door.
1. Locate the purple button on the back panel of unit
(Figure 1).
2. Push the purple button twice to enter unit into Force
Adjustment Mode (Figure 2). The LED (Indicator Light)
will flash quickly.
3. Push the remote control or door control (Figure 3). The
door will travel to the DOWN (close) position. Push the
remote control or door control again, the door will travel
to the UP (open) position. Push the remote control or
door control a third time to send the door to the DOWN
(close) position.
The LED (Indicator Light) will stop flashing when the force
has been learned.
The unit has learned the forces required to open and close
your door.
The door must travel through a complete cycle, UP and
DOWN, in order for the force to be set properly. If the unit
cannot open and close your door fully, inspect your door to
insure that it is balanced properly and is not sticking or
binding. See page 3, “Preparing your garage door.”
Purple
Button
Black
Button
Antenna
Indicator
Light
Without a properly installed safety reversal system, persons
(particularly small children) could be SERIOUSLY INJURED or
KILLED by a closing garage door.
• After ANY adjustments are made, the safety reversal system
MUST be tested. Door MUST reverse on contact with 1-1/2"
high (3.8 cm) object (or 2x4 laid flat) on floor.
Figure 1
BLACK ORANGE
Push Orange button
twice to enter
unit into Force
Adjustment Mode
Figure 3 Figure 2
LiftM ast er
or
LOCK
LIGHT