Technical information

TROUBLE SHOOTING - DOORKING BARRIER ARM OPERATORS
ACCESS CONTROL SOLUTIONS . . . 35 Preventative Maintenance Guide
Symptom Items to check
Operator will not run 1. Be sure AC power switch is on.
2. Check if Power LED on circuit board is on.
Operator will not run 1. Activate Card Reader, Transmitter or Phone Entry. Look at
Power LED is ON circuit board inside Gate Operator and see if red LED on
terminals 6 or 7 light up when device is activated.
2. Toggle the manual UP / DOWN switch. Gate should move
up then down.
Gate opens but will 1. Check if circuit board LED on terminals 6, 7, 9 are on.
not close. If so, some device may be holding gate open.
2. Check red LED on Reverse and Exit Loop Detectors. If on
then loop is holding gate open.
3. If auto close timer is not used, check bank of dip switches.
Switch #7, close timer, should be OFF,
Switch #6, up input: OFF= up command only,
ON= key open, key close.
Switch #4, Down Loop, ON= close gate with loop.
Gate starts to close 1. Check ERD LED. If it flashes when gate is closing then
then reverses to open. rotate the ERD sensitivity potentiometer counter clockwise
1/8 of a turn.
2. Check Loop Detector LED’s to see if loop is reversing the
gate.
Down input / down loop 1. Check that switch #4 is in the ON position.
will not close gate. 2. Down input must be activated then de-activated to close
gate.
Loop Detector LED is 1. Activate reset switch on loop detector (for DoorKing
on continuously. Model 9405, 9406 detectors this is a small push button next
to the large bank of dip switches. To reset press reset
button.
TROUBLE SHOOTING HINTS
If a malfunction occurs, isolate the problem to one of three areas: The Operator, The Keying
Devices (card reader, phone entry, etc.) or the Loop Detectors.
When placing a service call to the Authorized Dealer, relate what you found when following
the above steps.