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TROUBLESHOOTING CHART
TROUBLESHOOTING
SYMPTOM POSSIBLE CAUSES SOLUTIONS
Operator does not
run and
diagnostics display
not on.
a) No power to control board
b) Open fuse
c) Defective control board
a) Check AC power
b) Check fuses
c) Replace defective control board
Control board
powers up, but
motor does not
run.
a) Reset switch is stuck
b) Stop button active or jumper not in place
for stop circuit
c) Open or Close input active
d) Entrapment Protection Device active
e) Vehicle loop detector or probe active
f) Defective control board
a) Check reset switch
b) Check Stop button is not “stuck on”, or verify that the stop button is a
normally closed circuit, or put a jumper on the stop circuit.
c) Check all Open and Close inputs for a “stuck on” input
d) Check all Entrapment Protection Device inputs for a “stuck on” sensor
e) Check all vehicle detector inputs for a “stuck on” detector
f) Replace defective control board
Gate moves, but
cannot set correct
limits.
a) Gate does not move to a limit position
b) Gate is too difficult to move
c) Limits are set too close (slide gate
applications only)
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.
c) Ensure the gate moves at least four feet between the OPEN limit and the
CLOSE limit.
Gate does not fully
open or fully close
when setting
limits.
a) Gate does not move to a limit position
b) Gate is too difficult to move
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.
Operator does not
respond to a wired
control/command
(example: Open,
Close, SBC, etc.)
a) Check Open and Close command input LEDs
b) Stop button is active
c) Reset button is stuck
d) Entrapment Protection Device active
e) Vehicle loop detector or vehicle probe active
a) Check all Open and Close inputs for a “stuck on” input
b) Check Stop button is not “stuck on”
c) Check Reset button
d) Check all Entrapment Protection Device inputs for a “stuck on” sensor
e) Check all vehicle detector inputs for a “stuck on” detector
Operator does not
respond to a
wireless control or
transmitter
a) Check XMITTER LED when wireless
control is active
b) Stop button is active
c) Reset button is stuck
d) Poor radio reception
a) Activate wireless control and check XMITTER LED is on. Re-learn wireless
control/transmitter to control board. Replace wireless control as needed.
b) Check Stop button is not “stuck on”
c) Check Reset button
d) 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.
Gate stops during
travel and reverses
immediately.
a) Control (Open, Close) becoming active
b) Vehicle loop detector active
a) Check all Open and Close inputs for an active input
b) Check all vehicle detector inputs for an active detector
Gate opens, but
will not close with
transmitter or
Timer-to-Close.
a) Open control active
b) Vehicle loop detector active
c) Fire Dept input active
d) Timer-to-Close not set
e) Close Entrapment Protection Device active
a) Check all Open inputs for an active input
b) Check all vehicle detector inputs for an active detector
c) Check Fire Dept input
d) Check Timer-to-Close (TTC) setting
e) Check all Entrapment Protection Device inputs for an active sensor
Gate closes, but
will not open.
a) Vehicle loop detector active a) Check all vehicle detector inputs for an active detector
Exit loop activation
does not cause
gate to open.
a) Exit vehicle detector setup incorrectly
b) Defective Exit loop detector
a) Review Exit loop detector settings. Adjust settings as needed.
b) Replace defective Exit loop detector.
Interrupt loop does
not cause gate to
stop and reverse.
a) Vehicle detector setup incorrectly
b) Defective vehicle loop detector
a) Review Interrupt loop detector settings. Adjust settings as needed.
b) Replace defective Interrupt loop detector.
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