Overhead Door cannot provide the service advertised
First Repair: Tensioner Spring Failure. OD did not have the correct tensioner spring, so they installed the spring from a lighter door. Second Repair: First repair's tension spring caused a door derailment. Asked OD to reinstall rollers/rails and replace the tension spring - they reinstalled rollers/rails and increased tension on the incorrect spring such that the door flies open whenever unlocked.
By Mike S.

