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 ?; K1 `% H# X# a s* l! n! [2 y2 x
The sensors are located on each side of the garage door. You can manually adjust to make them align. 7 u6 A i% B4 k& a# ]7 e& } 4 ]+ {# F n$ M4 l5 {My husband did exactly the same thing and fixed the issue. 4 Y$ P; ~+ ~2 p3 F* N8 P: u6 y( |$ [/ i2 I3 } W. Q
Hope this will help you bit. Sorry. I can't type in Chinese now.