Hi,
My Whirlpool 7550 dishwasher hasnt been used for a few months but was fine last time it was used. Now it fills and after about 20 secs it beeps and flashes 11 times then pauses, then another 11 flashes etc. The machine empties and goes into rinse mode, regardless of what cylce was chosen. It continues to beep till switched off. I have tried a reset but to no avail. Any ideas anyone please? Thx Nick.
Water level issue. Check that the black grid in the sump is not full of fatty deposits, thus jamming its operation. It’s a twist fit from undeneath if serious cleaning is required.