Miele W526 Home › Forums › Trade Technical & Spare Parts Forums › Trade Technical Enquiries › Miele W526 This topic has 2 replies, 3 voices, and was last updated 15 years, 1 month ago by mike100. Viewing 3 posts - 1 through 3 (of 3 total) Author Posts March 2, 2011 at 8:24 pm #61418 mike100Participant Wont pump out. Seems as if there is an air lock. No blockages in sump hose and eco ball is free Lay drain hose down then it starts to pump when put back in exit pipe on wall. Could it be pump failing. She uses it a lot Mike March 2, 2011 at 9:19 pm #346040 leavemetogetonwithitParticipant Re: Miele W526 Impellor got loose on shaft? Mike. March 3, 2011 at 10:20 pm #346041 boselectaParticipant Could it be a coin caught in drain hose or pump assembly acting as a non return valve? Author Posts Viewing 3 posts - 1 through 3 (of 3 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In