Doorking 6500 User Manual download pdf (Page 35)

6500-065-K-7-08

• Check the reversing sensitivity.

• Disconnect the gate from the gate operator and check that the gate swings freely without any

binding.

• 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.

DC open system will

not open gate upon

AC power outage.

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.

• Replace the circuit board.

• Check for any input or loop detector LEDs that are ON.

•

Check that the operator is running in the proper direction (see “gate closes but will not open” above).

• Check if the DC system is set to open gate automatically or requires an input to open.

• Check that the DC system power switch is in the ON position.

• Check the batteries for proper voltage. Replace if necessary.

• Replace the DC system circuit board.

• 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.

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Doorking 6500 User Manual Page 35

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