Door Sense LED Blinks once every 2 seconds – Fault: Open circuit

What does Door Sense LED Blinks 1 time every 2 seconds mean?

This specific blinking pattern (0.5 Hz) indicates a fault condition where the door sense circuit is in an open circuit state. This can be caused by a disconnected wire or a faulty sensor.

• Open circuit in the door sensor wiring.
• Disconnected door contact or a break in the cable.
• Faulty door contact or supervisory resistor.

Click steps to track your progress.

1. 1

   Check all wiring connections for the affected door sense input, ensuring they are secure and intact.

2. 2

   Verify that the required supervisory resistors are correctly installed at the door contacts.

3. 3

   Perform the calibration procedure detailed in Section 2.2.5.1.2 of the LiNC-NET Administrator Guide.