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• Check the reversing sensitivity.
• Disconnect gate from the gate operator and check that the gate swings freely without any binding.
• Continue troubleshooting or replace the circuit board.
Gate opens a short
distance, then stops
and reverses.
Alarm sounds for 5
minutes and then
beeps once every 5
seconds. Operator
will not run.
Symptom Possible Solution(s)
• Check the input LEDs. Any ON will hold the gate open and indicates a problem with a keying device.
• Check the secondary safety devices. Any activated will hold the gate open and indicates a problem with the
safety device.
• Check the loop detectors. Any activated can hold the gate open and indicates a problem with the loop detector
or ground loop.
• Operator may be in a “soft shutdown.” Activate any keying device to determine if operator returns to normal
operation.
• If automatic close is desired, be sure SW-1, switch 4 is ON.
• Check motor as described on previous page.
Gate opens but will
not close.
Gate closes but will
not open.
Gate closes and then
re-opens.
Gate starts to close,
then reverses to open.
• Operator may be in a “soft shutdown.” Check input LEDs. If any are ON, momentarily disconnect, then
re-connect the wire going to the respective terminal. Operator should open.
• Check to be sure that the operator is running in the proper direction. Turn power OFF, and then back ON.
Activate a keying device. Operator should run in the open direction. If operator runs in the close direction,
turn power OFF and change direction switch SW-1, switches 1 and/or 2. Go to above section if operator now
opens but will not close.
• Be sure that the respective LED on the control board lights when the keying device connected to the respective
terminal is activated. If LED does not light, momentarily place a jumper wire from terminal 1 to the input
terminal being checked. If LED lights and gate opens, problem is with the keying device. If LED does not light,
replace control board.
• Check motor as described on previous page.
• Check that the reverse sensitivity is properly adjusted.
• Disconnect the gate from the operator and check that the gate operates freely without any binding.
• Check the loop detector LEDs and input LEDs. Any that flash ON will cause the gate to reverse.
• If a shadow loop is used, check for proper wiring. A mis-wired shadow loop detector will cause the gate to
reverse.
• Continue troubleshooting or replace the circuit board.
• Check for any input or loop detector LEDs that are ON.
•
Check that operator is running in the proper direction (see “Gate closes but will not open” above).
• Operator is in a “hard shutdown” condition. Reset switch must be activated to return operator to normal
operation.
• Check ERD setting.
• Make sure operator hub does not slip when gate encounters an obstruction.
Gate will not reverse
when an obstruction
is encountered.
• The entrapment protection device has a fault or the wiring to it is shorted.
Operator will not run,
entrapment protection
input(s) LED is ON.
• The entrapment protection device is not connected or the wiring to it is open.
Operator will not run,
entrapment protection
input(s) LED is
Blinking.
Operator has intermit-
tent functionality
problems that vary.
• The main terminal #3 250 mA power has been exceeded. Check total amp draw of connected device(s).
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