Jura S9 One Touch Heater Heats Until Burning

Hello everyone,

I bought a used Jura S9 One Touch. Defective were heating & thermal fuses. After I replaced everything, I found that the heater heats, but until Error 1 appears. However, the heater becomes so hot that the holder of the heater begins to melt, shortly thereafter the thermal fuse is through again.

heating I have connected to the following connections:

water heating: TM5 + Tm3
steam heating: Tm4 + Tm6

So it was in any case connected upon receipt and according to various forums correctly.

Are there wiring diagrams of the control?

Hello, you really need to read up, thermocouple checked? Or ..., I suspect that a triac is defective.
In the forums you will find. there are many contributions.

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