I have a indesit De73 kept coming up with a01 (Water in the bottom, floading ), called engineer thay replaced the pumps and water level sensor, but this did not sove the problem had engineer out about 20 times in first year.

After the warranty ran out I had a go myself, watched it fill could not see a problem.

I reduced the water presure and leveled it up and had no more problems with A01

After 7 months of running well I have another problem the top section is not cleaning, I suspect that the plastic rotor is worn ?

I had it apart today and everything was clean (Inside pumps and pipes) , If i open it while its running there is plenty of hot water flowing , from top and bottom.

Maurice Leach, January 2005

Check the opening behind the top tray.
There is a large white nut that has a rubber insert, it unscrews. This is the inlet feed for the top tray arm. You may find that the rubber is split or worn and so no pressure gets through to the top arm.

Reason I know! My top shelf is always dirty and doesnt rinse properly found split rubber on nut.

My two pence worth is that this is the worst designed dishwasher I have ever known. Good luck

Dave J, May 2005