COULD be that its lift power is not enough. Read manual and adjust . \9 W# D, U( k* }3 k5 ? 8 P0 P. f6 q$ q7 l, F- M" r ] 8 k% [% \# ^* {4 v. [5 g4 v! J2 w: `3 I3 i: O
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U can also call Robert garage door 7807073706. Really nice guy. We asked him twice . U an also try ask pay him less money than what he asked. Good luck