WE HAVE A SAMSUNG VRT CODE NO. DC68-02443C-01 AND WANTING TO KNOW WHEN ON HEAVY DUTY IF THE TIME OF THE WASHING CAN BE CHANGED, WHEN IT IS ON NORMAL IT DOES THE TIME FOR 30 MINS WHEN ON HEAVY DUTY 1HR 20 MINS... I HAVE THE TECHNICAL INFORMATION I DO NOT HAVE A MANUAL....I BELIEVE IT IS ALREADY PROGRAMMED WITH THE CYCLES OPTIONS...CAN YOU PLEASE HELP =)