COULD be that its lift power is not enough. Read manual and adjust 8 V( `3 p$ q4 u- u; \) |9 \- ~3 P # S% I" A$ N! g4 D q; g 2 j" d6 U2 K/ |3 h' x5 f2 i 3 q( Z; B2 m- r" f/ }$ C R
7 m) h, e4 E; s$ X
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