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

https://resourcerepair320.lucialpiazzale.com/garage-door-repair-tips-when-a-spring-snaps-on-a-freezing-morning-before-work-1

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.