Whirlpool dishwasher ADP905

Depress start button till start light goes out. Close door, drain pump should run for a while. Wait for end of program, rer-try a new program start. This process is re-setting memory.If this fails to sort problem then start checking components, ie: fill valve water on? heaters open circuit/down to earth, drain pump, is it emptying, wash pump.

Your filter may be blocked, take it out & clean it. Or, your drain hose may be off, or leaking, or not mounted high enough so that the discharge point is level with the top of the machine. If the machine does'nt detect a water back pressure in the drain hose, it thinks the hose is missing & so to avoid pumping water all over the floor, it switches itself off.
Fix the hose, (or clean the filter) then depress the start button until green light stops flashing. Switch electric off & then back on again. Then touch the start button.