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

https://garageresource110.zenbloomer.com/posts/garage-door-repair-for-a-frozen-morning-door-with-broken-springs-and-misaligned-rollers

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.