Bosch Slimline

Bosch D/w SRS43c12/gb14,
Cannot cancle program wont reset, doesnt stop at end of cycle.

Have checked earth leakage etc all ok, did notice the float switch caked with salt residue jamming it, cleaned that out, it now continues to fills and does not stop until the float switch operates then empties and fills until it eventually times out, then it will wash seem to go through program, the salt chamber is empty but the light on the display is not illuminating.

This seem to be a pcb fault but just want to confirm it.

Steven