Single Gate Will Not Operate

Open the control box cover, locate the Open/Close Command button, and press it to operate the gate.
Press the Reset button located above the Open/Close Command button, then press the Open/Close Command button to attempt operation again.
Press and hold the LED Indicator button and observe all of the red LEDs.
1. If any LEDs below the J2 terminal plug on the control board are on, that issue must be corrected. These lights correspond to the J2 accessory input terminals.
2. Identify which LED is on and note the J2 terminal number it is associated with.
3. Locate the accessory connected to that J2 terminal number.
4. Disconnect the accessory wire from that terminal and check whether the gate will operate.