The garage door may have looked fine in the dark, but after the spring snaps on a cold morning, it becomes heavy, stuck

https://doorspring583.raidersfanteamshop.com/broken-spring-replacement-before-work-and-when-opener-installation-makes-sense

The garage door may have looked fine in the dark, but after the spring snaps on a cold morning, it becomes heavy, stuck, and clearly broken.