Melitta ci thermosicherungen through again and again

Hi all
,My ci went bye bye a few days ago after a hot water draw with hot hiss. Both thermal fuses were blown. Have ordered boiler, 2 thermo fuses and temperature sensor. Boiler measured and compare with the values of the new - both 38 ohm. So old left in. Old temperature sensor also had the same resistance value as the new one, but I installed the new one. Both thermal fuses were through, the new ones were 184 °, but I ordered extra with stranded wire suitable for the Melitta ci, so should fit. All assembled and after 4 coffee cups again exactly the same.

Now I'm a bit at a loss as to what it can be. Triac durchgemessen and both power connections had no continuity, as it should probably be.

Does anyone have any idea what it may be?

Sorry, I just see I'm in the wrong forum here.