Arrived to property in Mission Viejo for crash door emergency service. Found door in crash door level 1 position. Customer agreed to service. Reset torsion assembly and found cable came off drum due to severe bind in rollers and cable tension monitor in wrong position. Customer agreed to new rollers. Installed all parts, lubricated and tightened all necessary hardware, added 2x4 material to install cable tension monitor in proper position, adjusted limits/force settings, tested all safety systems and doors/operators running optimally at this time. Next recommended tune up service February 2021.