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.) ] d4 f; U0 e3 w0 O
8 ]! n" [0 w) D
The sensors are located on each side of the garage door. You can manually adjust to make them align. & @: y7 L1 I; q, k% S2 ~2 J1 q' {( N6 q8 O, A+ t
My husband did exactly the same thing and fixed the issue. " [# j, X- l" ?. d" G" a% t8 v3 `! r! c' e: R( Y
Hope this will help you bit. Sorry. I can't type in Chinese now.