No error Code? Baumatic BDW13?

Hi,
I had'nt used the dishwasher for some time (2-3 months) and noticed that the water in the bottom was black.
I tried to run a cycle to clean it.
All the water drained away OK then I cleaned the inside During this process I obviously added too much water and it overflowed causing the E4 fault.
I rectified the E4 by draining the sump pan and all appeared OK.

I then run a program and noticed that the heating element was getting very hot, but the water lever was below the element.
I cancelled the program.

Since then I have the following fault....

Dishwasher powers up
No LED display
upon selecting program (program leds light up) pump empties dishwasher and then nothing happens i.e No heating, No water and No error code?

please help?