Troubleshooting Chart - Chamberlain LiftMaster Elite CSL24VH Installation Manual

TROUBLESHOOTING

TROUBLESHOOTING CHART

FAULT POSSIBLE CAUSES
Operator does a) No power to control board
not run and
b) Open fuse
diagnostic LED
c) If on battery power only, low or dead batteries
not on.
d) Defective control board
Control board a) Check DIAGNOSTIC LEDs
powers up, but
b) Reset switch set to RESET
motor does not
c) Stop button active
run.
d) If on battery power only, low or dead batteries
e) Open or Close input active
f) Entrapment Protection Device active
g) Vehicle loop detector or probe active
h) Defective control board
Relay clicks with a) Chain jammed
command, but
b) Defective motor or motor wires
motor does not
c) Defective control board
turn on.
Gate moves, but a) Gate does not move to a limit position
cannot set
b) Gate is too difficult to move
correct limits.
Gate does not a) Gate does not move to a limit position
fully open or
b) Gate is too difficult to move
fully close when
setting limits.
Operator does a) Check DIAGNOSTIC LEDs
not respond to a
b) Check Open and Close command input LEDs
wired control/
c) Stop button is active
command
d) Reset switch is set to RESET
(example: Open,
e) If on battery power only, low or dead batteries
Close, SBC, etc.)
f) Entrapment Protection Device active
g) Vehicle loop detector or vehicle probe active
h) Defective control board
Operator does a) Check DIAGNOSTIC LEDs
not respond to a
b) Check XMITTER LED when wireless control is
wireless control
active
or transmitter
c) Stop button is active
d) Reset switch is set to RESET
e) Poor radio reception
f) Defective control board
Gate stops a) Check DIAGNOSTIC LEDs
during travel and
b) Inherent force obstruction detection
reverses
c) External Entrapment Protection Device
immediately.
activation
d) Control (Open, Close) becoming active
e) Vehicle loop detector active
f) Low battery voltage
CORRECTIONS
a) Check AC and battery power.
b) Check fuses.
c) Charge batteries by AC or solar power or replace batteries.
d) Replace defective control board.
a) Use Diagnostic code to identify issue.
b) Check Reset switch.
c) Check Stop button is not "stuck on".
d) Charges batteries by AC or solar power or replace batteries.
e) Check all Open and Close inputs for a "stuck on" input.
f) Check all Entrapment Protection Device inputs for a "stuck on" sensor.
g) Check all vehicle detector inputs for a "stuck on" detector.
h) Replace defective control board.
a) Check chain. Use manual disconnect, manually move gate, and ensure gate moves easily
limit to limit. Repair gate as needed.
b) Inspect motor and motor wires for open wire, shorted wires, damage, etc. Else, replace
motor.
c) Replace defective control board.
a) Use manual disconnect, manually move gate, and ensure gate moves easily limit to limit.
Repair gate as needed.
b) Gate must move easily and freely through its entire range, limit-to-limit. Repair gate as
needed.
a) Use manual disconnect, manually move gate, and ensure gate moves easily limit to limit.
Repair gate as needed.
b) Gate must move easily and freely through its entire range, limit-to-limit. Repair gate as
needed.
a) Use Diagnostic code to identify issue.
b) Check all Open and Close inputs for a "stuck on" input.
c) Check Stop button is not "stuck on".
d) Check Reset switch.
e) Charges batteries by AC or solar power or replace batteries.
f) Check all Entrapment Protection Device inputs for a "stuck on" sensor.
g) Check all vehicle detector inputs for a "stuck on" detector.
h) Replace defective control board.
a) Use Diagnostic code to identify issue.
b) Activate wireless control and check XMITTER LED is on. Re-learn wireless control/transmitter
to control board. Replace wireless control as needed.
c) Check Stop button is not "stuck on".
d) Check Reset switch.
e) Check if similar wired control operates correctly. Check if wireless controls works properly
when within a few feet of operator. Check operator's antenna and antenna wire. Check other
wireless controls or devices.
f) Replace defective control board.
a) Use Diagnostic code to identify issue.
b) Check for obstruction in gate's path or travel. Use manual disconnect, manually move gate,
and ensure gate moves easily and freely through its entire range, limit-to-limit. Remove
obstruction or repair gate as needed.
c) Check all Entrapment Protection Device inputs for an active sensor.
d) Check all Open and Close inputs for an active input.
e) Check all vehicle detector inputs for an active detector.
f) Battery voltage must be 22.0 Vdc or higher. Charge batteries by AC or solar power or replace
batteries.
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TROUBLESHOOTING CHART