When the garage door reverses quickly prior to it closes every one of the way or right right after it hits the ground, this is commonly because of improper travel limit configurations. Modify the travel limit options so the door closes absolutely without abnormal force. Electric power or electrical difficulties: https://download-free-software-2042973.post-blogs.com/58980184/about-old-garage-door-opener-model-travel-limit-set-up