Broken Spring vs Bad Opener: How to Tell in Santee

Published October 24, 2026

A loud bang then a door that will not lift usually means a spring. An opener that hums, blinks, or reverses with a balanced door usually means sensors, power, or the motor unit. Knowing which saves an unnecessary part swap.

Spring clues

• Loud bang from the garage
• Visible gap in the torsion spring
• Door extremely heavy to lift by hand
• Opener struggles or lifts only a few inches

Opener clues

• Door is balanced and lifts by hand
• Remotes work intermittently
• Safety sensors misaligned or dirty
• Motor hums without moving the rail

Safety note

Never wind springs yourself. Disconnect the opener and keep clear until a technician arrives if the door is stuck open or the spring is broken.