Not able to select a programme. What does this fault mean when lights A1, A2, A3, A4 are flashing?

Micj, May 2009

agreed, flood protect switch in the bottom, just fixed mine this way

mac, February 2016

There is water in the bottom of the machine.Only a small amount will lift the float and give four lights.
Take off the kick board to expose the bottom of the dishwasher.There are two small screws visible,undo these and the bottom tray will fall down.Mop up the water and refit the tray.Cancel the four lights and the machine will work.

Jeff, October 2012