Filter
Top Products
ADJUSTMENT STEP 2
Adjust the Force
Force adjustment controls are located on the back
panel of the motor unit. Force adjustment settings
regulate the amount of power required to open and
close the door.
If the forces are set too light, door travel may be
interrupted by nuisance reversals in the down
direction and stops in the up direction. Weather
conditions can affect the door movement, so
occasional adjustment may be needed.
The maximum force adjustment range is about
3/4 of a complete turn. Do not force controls
beyond that point. Turn force adjustment controls
with a screwdriver.
NOTE: If anything interferes with the door's upward
travel, it will stop. If anything interferes with the
door's downward travel (including binding or
unbalanced doors), it will reverse.
Without a properly installed safety reversal system,
persons (particularly small children) could be
SERIOUSLYINJUREDor KILLEDby a closing garage
door.
• Too much force on garagedoor will interfere with
proper operationof safety reversalsystem.
• NEVERincreaseforce beyond minimum amount
required to close garagedoor.
• NEVERuseforce adjustments to compensatefor a
binding or sticking garage door.
• If one control (force or travel limits) is adjusted,the
other control may also needadjustment.
• After ANY adjustments are made,the safety reversal
system MUSTbe tested. Door MUSTreverseon
contact with 1-1/2" high (3.8 cm) object (or 2x4 laid
flat) on floor.
HOW AND WHEN TO ADJUST THE FORCES
1. Test the DOWN (close) force
• Grasp the door bottom when the door is about
halfway through DOWN (close) travel. The door
should reverse. Reversal halfway through down
travel does not guarantee reversal on a 1-1/2"
(3.8 cm) obstruction. See Adjustment Step 3,
page 29. If the door is hard to hold or doesn't
reverse, DECREASE the DOWN (close) force by
turning the control counterclockwise. Make small
adjustments until the door reverses normally.
After each adjustment, run the opener through a
complete cycle.
• If the door reverses during the down (close)
cycle and the opener lights aren't flashing,
INCREASE DOWN (close) force by turning the
control clockwise. Make small adjustments until
the door completes a close cycle. After each
adjustment, run the opener through a complete
travel cycle. Do not increase the force beyond the
minimum amount required to close the door.
2. Test the UP (open) force
• Grasp the door bottom when the door is about
halfway through UP (open) travel. The door
should stop. If the door is hard to hold or
doesn't stop, DECREASE UP (open) force by
turning the control counterclockwise. Make small
adjustments until the door stops easily and opens
fully. After each adjustment, run the opener
through a complete travel cycle.
• If the door doesn't open at least 5 feet (1.5 m),
INCREASE UP (open) force by turning the
control clockwise. Make small adjustments until
door opens completely. Readjust the UP limit if
necessary. After each adjustment, run the opener
through a complete travel cycle.
Force Adjustment
Controls
Back panel
\
\l
ADJUSTMENT LABEL
Open Force Close Force
28