LiftMaster MAXUM JDC Serie Manual De Instalación página 57

Troubleshooting (continued)
If an error occurs, the idle screen is replaced by a screen showing the error code and a description of the error.
Error messages originate in one of three categories:
• Motor drive and power circuitry
• Door control codes related to the motor and encoder
• Option codes related to accessories used with the industrial DC operator.
Consult the Table of Error Codes below to determine the cause and corrective action. Depending on the type of error,
user interaction may be required to clear the error. The error window closes when the error has been cleared/corrected.
Display
Code
Message
MOVE THE
DOOR
F01 F01 CLOSE
LIMIT
F02 F02 OPEN
LIMIT
Description
Displayed in limit learn
mode.
The position encoder
requires some
movement before
the position can be
determined on powerup.
Once the position has
been successfully
determined, the
position will be
maintained until power
is lost.
Door has moved
beyond the lower end
position
Door has moved
beyond the upper end
position
Possible Causes Diagnosis
Door has not been Upon initial powerup,
moved since the this message will
last power cycle be displayed in the
limit learn menu if no
other movement has
occurred.
Operator has Check position of
been manually door/operator with
hoisted below the manual hoist
lower end position
(hoisted jackshaft
models only)
Door is falling or Check for excessive
drifting downward door imbalance in
when operator is down direction
stopped
Operator has been Check position of
manually hoisted door/operator with
above the upper manual hoist
position limit
(hoisted jackshaft
models only)
Door is drifting Check for excessive
upward when door imbalance in up
operator is direction
stopped
57
Resolution
Move the door slightly in
either direction using the
up or down buttons on
the wall control. 'MOVE
THE DOOR' message will
disappear.
If door does not move,
or moves and stops, see
troubleshooting steps
for F04 UNAUTHORIZED
STOP.
If door moves without
issue but 'MOVE
THE DOOR' stays
on the screen, see
troubleshooting steps
for F91 ENCODER.
Move position back
within normal limits.
Adjust door position
limits if necessary.
Rebalance door
replace broken springs
ensure correct springs
and drums are used
Move position back
within normal limits.
Adjust door position
limits if necessary.
Rebalance door
Ensure correct springs
and drums are used