The first sign of trouble may be the crack of a garage door spring snapping on a cold morning

https://doorrepair273.nexorafield.com/posts/garage-door-repair-and-roller-replacement-for-a-door-that-lurched-after-a-spring-snap

The first sign of trouble may be the crack of a garage door spring snapping on a cold morning, followed by the discovery that the opener can no longer help.