The most common reason for a garage door remote to not function properly is if its batteries need replacing. In addition, photo eyes may become misaligned or damaged over time, and springs could break making them unable open fully on their own – in these cases, it would be the best to contact an experienced professional who knows exactly how much force needs to be applied when opening/closing manually rather than using automatic sensors. If there’s no response after trying our suggestions then maybe something has happened beyond what we’re able to fix remotely without calling out professionals.