Whirlpool dishwasher ADP4501/5 Home › Forums › Trade Technical & Spare Parts Forums › Trade Technical Enquiries › Whirlpool dishwasher ADP4501/5 This topic has 1 reply, 2 voices, and was last updated 16 years, 8 months ago by lyndy. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts July 28, 2009 at 10:58 am #47389 lyndyParticipant Dishwasher starts to fill then after 20 seconds starts to pump water out and then start light flashes to indicate a fault. Flashes 11 times, pauses, then flashes 11 times. Pressure switch in sump cleaned out and tested – working ok. Service no. 851150415829 Any suggestions? July 28, 2009 at 1:27 pm #293321 martinmParticipant Re: Whirlpool dishwasher ADP4501/5 FA. 11 Flashes. OWI failure. Dirty OWI lens. OWI defect or control board defect. Check cabling. optical water indicator faulty problem, i think its situated on left hand side on air break Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In