Springs counterbalance the weight of the door. When they break, the door becomes heavy and unsafe to lift
The motorized device that opens and closes the door. Issues often come from sensors, gears, or wiring.
Small wheels that help the door move smoothly along the tracks. Worn rollers cause noise and jerky movement.
Metal rails that guide the door. Bent or misaligned tracks can stop the door from opening properly.
Infrared sensors that prevent the door from closing if something is in the way. Misalignment is a common issue.
A high‑tension repair that should only be done by a trained technician due to safety risks.