Lenel DirecDoor, Installation Manual

Page: 83 / 90

DirecDoor Installation Guide
83
CHAPTER 12
Troubleshooting and Maintenance
This section provides information to help you diagnose and solve various problems that may arise
while configuring or using your product.
Refer to the appropriate troubleshooting section:
•
Power Problems on page 83
•
Reader Problems on page 84
•
Door Strike Problems on page 84
•
DirecDoor Problems on page 84
Power Problems
Problem : The DirecDoor does not power up correctly.
Resolution : Verify that D85 (Power LED) is on. Refer to figure Wiring Auxiliary Power Supply with
Built-in Relay for Fault Output (AC Power Fail) on page 26 . If the LED is not on, do the following:
1.
Use a voltmeter to check the power supply output. It should read 24 VDC nominal. If there is no
output, make sure the power supply is not on a switched outlet. Be sure the circuit breaker where
the power supply is connected, is not tripped.
2.
Be sure connector J8 is properly seated in the board.
3.
Make sure that the wiring connections from the power supply to the board are not reversed.
4.
Disconnect connector J8 from the board. Use an ohmmeter to check the resistance between pins
1 and 2. If the resistance is less than 10K ohms, there is a short from power to ground. Isolate the
fault by removing the connectors one-by-one until the fault condition disappears. Trace out the
wiring on these connectors to find and correct the problem.