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. + j. E& Y4 j) [: S! a! o1 x 0 `% F, k# ~7 w8 p8 f; w% L9 M) lThe sensors are located on each side of the garage door. You can manually adjust to make them align.1 |1 c: O L( q( [4 |1 ^
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My husband did exactly the same thing and fixed the issue./ B4 T7 o: h. p% {& n
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Hope this will help you bit. Sorry. I can't type in Chinese now.