Miele CVA4080 pump runs continuously

Hello,

I've been tormenting myself with repairing my CVA4080 for several months now. Before I give up, I try it here again - maybe somebody can help me...

The hot water pump was broken - without any function and no sound anymore. After installing a new pump, it runs as soon as the plug is in the socket.
I can get coffee and hot water in principle, but the pump is running continuously
The steam pump is working properly.
I also switched the solenoid valves over the pumps - No change.
DLE's checked for flow - everything ok.

Before the pump gave up the ghost' the house FI switch flew out several times during every descaling and I had to reset the process in customer service mode.

I have tried to locate the 2 Triac's for the pump circuit, but cannot find them on the circuit board.

I live in England where there are no independent Miele KVA specialists and my experience with Miele customer service here is miserable. I am grateful for every tip!

Greuss,
Christian