Help Please: Problem with Francis Francis X1 temperature regulating issue


New member
May 27, 2020

I have a problem with my francis Francis X1 (first generation aluminium boiler) it only heats to 80°. I opened it and tried some setting with adjusting the resistor (1K ohm) but nothing really changes.
I also tried other settings with the 10K ohm resistor (this ones is normally glued as fixt setting). But I don't get the temperature above 80°...

I measured the water temperature with a thermometer directly at the nozle when it comes out.
If I pull out the thermometer out of the boiler the water temperature easily goes up and over the 100°.

Anybody with similar problems and a fix?

Kind regards,


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