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. - z3 w: f& H3 m b+ Z7 }8 Y# ~ 5 {4 ^2 r% C2 S( mThe sensors are located on each side of the garage door. You can manually adjust to make them align.! k0 C' s1 R' e$ t& v0 o
7 t ]" A) [) L5 L& j8 Z1 IMy husband did exactly the same thing and fixed the issue.: x9 L$ b: z; r- P
% z1 X* f' x9 Z |6 EHope this will help you bit. Sorry. I can't type in Chinese now.