Bosch Dishwasher sgv53e03gb/56

Hi folks,

I have a Bosch dishwasher Model sgv53e03gb/56.

Problem i have is that when i press the ignition switch the light on the PCB for 35 degrees will light up for about 1 second and then go out, and that’s it.
If you press the switch again nothing will happen – no lights.

If you turn it off and leave overnight – and turn it back on and press the ignition switch the same thing happens just the 35 degrees light lights up for 1 second and then goes out.

What on earth could be my issue.

Obviously power going to the machine.
Obviously power being routed through the ignition switch.

Any other ideas before i start throwing parts at it.

Thanks

Peter