This sounds similar to the problem I've just had with my new world washing machine.If you've cleaned the pump -not sure what you mean by that-did you mean the filter? If you can't get the door open-put the drain hose into a shallow bowl on the floor and water should drain out by gravity (unless the drain hose is blocked).Assuming you get all of the water out of the machine-the safety lock should then be released for you to open the front loading door.Next job is to remove all the hoses going into the drain pump-mine had three and remove them completely from the machine and clean them with a bottle brush on a stick ,or flexible small drain cleaner coiled strip or initially try blowing hard through the hose-make sure the free end is going into a bucket.Also-once you've managed to empty your machine-can you see pump impeller when you remove the filter plug-if yes-switch machine onto "drain" position (obviously after putting back all the drain hoses and clips) and see if impeller rotates.If yes-try putting about 5 pints of water into the drum, close door and see if it will drain. (after you've cleaned all of the hoses to the pump.)
Trevor
March 2010