My garage door has the same problem. I phoned Barcol and the guy told me it is a easy fix. Usually because the two sensors above the ground are not in alignment. 7 U V" a* ^( q7 z3 p% s: z" r/ p# }/ I5 E7 `
The sensors are located on each side of the garage door. You can manually adjust to make them align. 1 g9 A/ q, k9 l/ e0 c2 D% V) b- ^1 X$ J r
My husband did exactly the same thing and fixed the issue.# s+ h* ~8 E' ^
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Hope this will help you bit. Sorry. I can't type in Chinese now.