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.- @1 i h0 H: {% N. V% E% h2 m
4 q( q! r4 d: @5 AThe sensors are located on each side of the garage door. You can manually adjust to make them align. , h0 \: O. q1 T, w 4 X3 G; L: c u$ R) P5 hMy husband did exactly the same thing and fixed the issue.6 p0 I! h% a, `' `( D
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Hope this will help you bit. Sorry. I can't type in Chinese now.