If the gates do not close at the same time for any reason, it may be due to several factors. Below are several steps to help identify a solution to the problem. Begin with the first step and proceed sequentially through the steps until the issue has been resolved.
Troubleshooting steps
Step 1: Check the connections of Gatecom cable between the SigmaGates
Step 2: Check the potentiometer settings
Step 3: Check the dipswitches on the Main PCB
If none of the above steps resolve the issue, the defective component must be identified and replaced.