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. 4 ?3 c! v& s) D' c5 E: J* p4 }% `# p8 H: F/ S+ p8 R7 I. y5 u
The sensors are located on each side of the garage door. You can manually adjust to make them align. I4 x% D; e& ^8 |& m: B% `
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My husband did exactly the same thing and fixed the issue.2 ~$ ~; ?8 w8 [; s' p: h2 i
' o3 t; @8 j* \' o- m' O: h, sHope this will help you bit. Sorry. I can't type in Chinese now.