Chamberlain JDC - Page 52

52
Troubleshooting (continued)
Code
Display
Message
Description Possible Causes Diagnosis Resolution
F19 F19
SYSTEM ID
System ID is not
congured in the
system. System
ID is needed by
the powerhead
main board to
correctly run the
operator.
(service kit boards
only)
System ID
is unset
(service board
replacement)
F19 error Congure system ID in
the menu by using the
LCD wall control.
Ensure system ID
is chosen properly.
Operator may not
function properly if the
chosen system ID does
not match the operator.
F23 F23
OVERTEMP
Motor drive
circuitry
temperature is
too high. Message
is displayed until
the circuitry cools
down.
Door imbalance
or excessive
resistance
Inspect door for imbalance
or excessive resistance
Repair or correct
conditions resulting
in excessive door
imbalance/resistance
Poor airow/
cooling
Check area around operator
for adequate ventillation
space on the sides, above,
and below the operator.
Check the electronics
enclosure for dust or other
debris near or behind the
PCBA that restricts airow
or cooling.
Correct any airow
restrictions around or
inside the operator to
improve cooling of the
electronics.
Ambient
temperature too
hot
Measure ambient
temperature near the
powerhead when the
overheating is occurring.
Check against the
temperature range
specication for the
product.
Product must be used
within the specied
operating temperature
range or risk of damage
to the operator is
possible.
Excessive gear
reducer or motor
drag
Check that the motor
and gearbox rotate freely
and smoothly when
disconnected from the door
Correct any issues
found, or replace
any faulty or worn
components producing
excessive drag
Faulty powerhead
main board
If OVERTEMP fault never
clears, even when the
electronics have cooled,
the main board may be
faulty.
Replace main board.
Faulty motor
drawing excessive
current
If motor is getting
excessively hot or does
not spin smoothly when
powered, there could be an
issue with the motor
Replace motor