Garage door springs are a vital part of the opening of the door. Without them the motor wouldn’t be able to do its job. If you have a broken spring trying to open your garage door will cause damage to your opener. In this case you can see that it sheared the sprocket off costing the customer much more money than just having the spring fixed in the first place.
If you suspect spring damage DO NOT USE THE OPENER. Call a trusted garage door repair company like locally owned and operated All About Garaged Doors to give you an honest estimate and top quality repair.