I have a Hoover 550 MB Top Loader washing machine . The cycle won't move from wash to spin . it doesn;t progress out of wash cycle , it stays there forever .

Will the unit spin if you manually turn the timer dial to spin? If so, remove power, remove the clock motor from the timer, and inspect the clock and mating timer gearing for debris or damaged gear teeth. At the worst, replace the timer. You may be able to scrape or file the damaged teeth so that the timer will progress.