HSIE 2B0 does not heat water ⇐ Hotpoint-Ariston

[PotatoMonster]

Dear forum users. I replaced the bushings in the circulation pump cp035-005 with bushings from Zedex-100K and put it back together. The circulation and pressure are excellent, but the heating element does not turn on in any program.
The resistance of the heater is normally 28 Ohms
On the temperature sensor board (534232 / C00534232 / 488000534232) only a thermistor is soldered, which shows 420 kOhm at room temperature and reduces its resistance when heated. Are its operating characteristics known?
After starting the ECO 50* cycle, I ran cold water for half an hour, drained the water twice, and then beeped briefly once and lit two lights for the second and fourth programs + the power button blinked frequently.
What could go wrong and is it worth it for a self-taught master to pick the brains of PMM? I would be grateful for any information.

[PotatoMonster]

Everything turned out to be much more trivial. It was necessary to check the tena through the contacts of the chip. The fuse has blown. Pmm fixed

[I kneel down]

Hello, did you finally find out what indicators should be on the sensor?

Sent after 1 hour 53 minutes 58 seconds:
PotatoMonster, ???