Sliding gates are opening/closing like someone is going in /out.

[JoeF]

Chemberlain LiftMaster Model ECO300.

From time to time I have a big problems. Sliding Doors are opening/closing like photocell been disruption.

like someone is passing in / out.

Every time "click" from relay inside the control box, is heard.

Please help!

Best Regards
Andreja

HI Andreja,
are you using cells as a means of opening or a means of additional safety?

it sounds to me that there is either a short in the command inputs or a short on the cells if they are used for a means of opening or closing.
a way to test this is to disconnect all pushbuttons intercoms ect and see if this still happens i am confident this is the issue and all that will be required is to replace the cable.