Chamberlain LiftMaster CSW200101U Installation Manual page 45

DIAGNOSTIC CODES continued...
Some codes are saved in the code history and some are not. If a code is not saved it will briefly appear on the display as it occurs, then disappear.
LiftMaster System
Code Meaning
OPEN EYE/EDGE held more than 3 minutes
66
(expansion board)
67 Wireless edge triggered more than 3 minutes
68 Wireless edge loss of monitoring
Wireless edge triggered
69
CLOSE EYE/INTERRUPT triggered, causing
70 reversal, preventing close, or resetting TTC (main
board)
CLOSE EDGE triggered, causing reversal,
71
preventing close, or canceling TTC (main board)
OPEN EYE/EDGE triggered, causing reversal or
72
preventing opening (main board)
CLOSE EYE/INTERRUPT triggered, causing
73 reversal, preventing close, or resetting TTC
(expansion board)
CLOSE EYE/EDGE triggered, causing reversal and
74 preventing close or canceling TTC (expansion
board)
OPEN EYE/EDGE triggered, causing reversal or
75
preventing opening (expansion board)
Close input (EYE/EDGE) communication fault from
80 other operator
Open input (EYE/EDGE) communication fault from
81 other operator
Close input (EYE/EDGE) communication fault
82
(expansion board)
Open input (EYE/EDGE) communication fault
83
(expansion board)
Force Reversal
91
RPM / STALL Reversal
93
AC motor no start condition
95
Current Sensor Fault
96
99 Normal Operation
TROUBLESHOOTING
Installed System Informational
External Entrapment
Protection
Solution
Check wired input on expansion board; check for alignment or
obstruction. The photoelectric sensors may be installed too far apart.
Check wired input for wiring issue or obstruction.
Check wireless edge inputs.
IF an obstruction occurred, no action required. If an obstruction did
NOT occur, check inputs and wiring.
IF an obstruction occurred, no action required. If an obstruction did
NOT occur, check alignment, inputs, and wiring.
IF an obstruction occurred, no action required. If an obstruction did
NOT occur, check alignment, inputs, and wiring.
IF an obstruction occurred, no action required. If an obstruction did
NOT occur, check alignment, inputs, and wiring.
IF an obstruction occurred, no action required. If an obstruction did
NOT occur, check alignment, inputs, and wiring.
IF an obstruction occurred, no action required. If an obstruction did
NOT occur, check alignment, inputs, and wiring.
IF an obstruction occurred, no action required. If an obstruction did
NOT occur, check alignment, inputs, and wiring.
Check inputs and communication method between operators, either
wired bus or radio. Ensure operator is powered. May have to erase the
wireless communication and reprogram the two operators.
Check inputs and communication method between operators, either
wired bus or radio. Ensure operator is powered. May have to erase the
wireless communication and reprogram the two operators.
Check the connections between the main board and the expansion
board.
Check the connections between the main board and the expansion
board.
Look for obstruction, if no obstruction, check that the mechanical
assembly is engaged and free to move. See section on Limit and Force
Adjustment, and Obstruction Test.
Check for obstruction. If no obstruction, check the encoder wiring and
that the operator is engaged and free to move. Replace RPM assembly.
Motor start sequence failed. If the gate and motor are NOT moving, or
moving too slow, check for an obstructed gate, binding in the
mechanism, and relay board and start capacitor connections. If the
gate and motor ARE moving, failure is due to loss of the encoder
signal. Check the encoder cup and sensor on the limit shaft, and
wiring.
A fault was detected on the current sensor. Make sure the current
sensor is connected to the main control board. Check the current
sensor harness for an open or short. The operator will need a power
cycle to resume operation after correcting the fault. If the fault
continues, replace the power board.
No action required
43
Inherent Entrapment
Protection
Saved
YES
YES
YES
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES