Bosch/Siemens dishwasher heat and drain problem

Ciao a tutti,
Last week my house was struck by lightning… I had a lot of damage, among with my Siemens dishwasher (Siemens SN258B00NE/63).
I was at home but luckily I was only scared!

I’m not expert of dishwasher and electronic but I have a good dexterity (I’m a mechanical engineer) so I decided to try repairing by myself. In these day I’ve read a lot in order to understand how the machine works and for shure I’ve learned a lot of things….I also discovered this beautiful forum, and I’ve read lots of thread that helped me in resolving some issues.

Unfortunately I’ve not yet resolved all problems, and I hoe you can help me…
Going with order:

• The first problem was E9 error at the end of the cycle. I found the heating element of circulation pump burned. Repaired and now the resistance with ohmmeter is 20 ohm
• After that… E02 Error at the end of the cycle. I found a fault relay in control module and so I’ve changed it
• After this last repair (things get complicated for me) the draining pump, that had never given problems, stops working. And the water anyway wont heat.

I tried to understand if the drain pump works pulling up the security float… In this condition the pump start… but the wrong one: the circulating pump.

So, studying the board, I’ve seen other two relays: Putting voltimeter at this relay coil when the security float is up, at first I read 12V and after a second the voltage drop to 2V (opening the relay)

Definitively…. None of 4 realys works (the two of heater and the two of drain pump)
Have you any suggestion on what I can check on my board?
CIaoo