how can i fix my hoover logic 1200?

hi my problem is my machine won't drain away the dirty water unless i lower the waste hose in to a bucket when i hear the pump starting to run. My problem began when i saw a small amount of water on the floor after a wash. i then discovered a small hole on the door seal and replaced it. but i still had a leak after further investigation i found a damaged sump hose and replaced it. i don't have any leaks now but i don't know if i have done something to cause this other problem i have also changed the pump but made no difference