These are high-priority warning signs that your garage door needs immediate attention. If the door won’t open or close, makes a loud snap/bang/grinding noise, falls off its track or hangs unevenly, gives off a burning smell from the opener, or stalls halfway and blocks access, the system may have a failed spring, misaligned track, or electrical hazard. For safety and uptime, stop using the door and schedule an emergency inspection to prevent further damage or injury.