error code e3 ?

I have a baumatic dishawsher and had an error code e3 so i did what was stated in other blogs like mop up all the water from the bottom of the dishwasher base behind the 2 black panels. It worked for a while but now when i turn it on it switches on and the motor starts and the water fills up but then stops. If I leave the diswasher for a while it come back with an error e3 even tho there is no water in the base. What do I do know. Any ideas.???