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. + ~- P5 f/ V R( p: [ , k' \( Q7 K' K- v ^& IThe sensors are located on each side of the garage door. You can manually adjust to make them align.6 B6 S/ L" x% r
" R3 I- k' f d* S9 V$ RMy husband did exactly the same thing and fixed the issue.1 ]$ h3 ?5 s8 E. G9 o% D v% l
9 c6 d" f3 e5 ~! JHope this will help you bit. Sorry. I can't type in Chinese now.