Whirlpool dishwasher ADP 7740/3 Home › Forums › Trade Technical & Spare Parts Forums › Trade Technical Enquiries › Whirlpool dishwasher ADP 7740/3 This topic has 3 replies, 2 voices, and was last updated 15 years, 8 months ago by knobs. Viewing 4 posts - 1 through 4 (of 4 total) Author Posts August 9, 2010 at 5:47 pm #56402 knobsParticipant Hi guys,this machine fills for about 10 secs then does 7 flashes via the start button.looking at the sticky fault codes ,it looks water related. any part nos would be appreciated.many thanks August 10, 2010 at 8:15 am #327265 advParticipant Re: Whirlpool dishwasher ADP 7740/3 7 flashes is reed switch on fill matrix. have to buy hole matrix although herd some people have just fitted the small reed switch some how 😆 August 10, 2010 at 4:02 pm #327266 knobsParticipant Re: Whirlpool dishwasher ADP 7740/3 many thanks ,have not fitted one before are they pricey ? August 11, 2010 at 11:05 am #327267 advParticipant Re: Whirlpool dishwasher ADP 7740/3 bowt £50 the reed switch is 70p 😆 from where dont no 😆 Author Posts Viewing 4 posts - 1 through 4 (of 4 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In