Bosch Dishwasher not working after Leak (no Power to Control

We had a Leak from our Bosch Logixx Express.
When we discovered the leak we had power on the panel but after switching off there was no lights on the display when we powered back on.

We found the Water Level Float was stuck ‘down’ with Limescale.
We cleaned and it is now moving freely.
We have refitted but we still have no power to the control panel.

We do have power to the machine – by operating the ‘Flood’ float we hear a pump start.

Is there reset operation we need to go through or should we look for another problem.

Any advice most welcome

Thanks