Troubleshooting Chart - Chamberlain LiftMaster CSL24V Installation Manual

TROUBLESHOOTING
FAULT POSSIBLE CAUSES
Operator does not a) No power to control board
run and diagnostic
b) Open fuse
LED not on.
c) If on battery power only, low or dead batteries
d) Defective control board
Control board a) Check DIAGNOSTIC LEDs
powers up, but
b) Reset switch set to RESET
motor does not run.
c) Stop button active
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 motor
b) Defective motor or motor wires
does not turn on.
c) Defective control board
Gate moves, but a) Gate does not move to a limit position
cannot set correct
b) Gate is too difficult to move
limits.
Gate does not fully a) Gate does not move to a limit position
open or fully close
b) Gate is too difficult to move
when setting limits.
Operator does not a) Check DIAGNOSTIC LEDs
respond to a wired
b) Check Open and Close command input LEDs
control/command
c) Stop button is active
(example: Open,
d) Reset switch is set to RESET
Close, SBC, etc.)
e) If on battery power only, low or dead batteries
f) Entrapment Protection Device active
g) Vehicle loop detector or vehicle probe active
h) Defective control board
Operator does not a) Check DIAGNOSTIC LEDs
respond to a
b) Check XMITTER LED when wireless control is
wireless control or
active
transmitter
c) Stop button is active
d) Reset switch is set to RESET
e) Poor radio reception
f) Defective control board
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
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TROUBLESHOOTING CHART