On a cold morning, a snapped spring can make the garage door seem harmless until it is lifted

https://www.slideserve.com/bitineomdt/can-a-snapped-spring-cause-off-track-door-roller-replacement-on-cold-mornings-14866706

On a cold morning, a snapped spring can make the garage door seem harmless until it is lifted, when the missing tension becomes obvious at once.