This afternoon I suddenly experienced problems with total power failure in my huose.
When plugging in a battery charger, the Safe-T-Cut jumped out.
Nothing special you might say, initially I thought of the charger but every time the STC switched off.
Then you think of something more serious, like a boiler I have in the attic, or at least a ground fault. But nothing of the sort.
It seems to be the STC itself, it consists of 2 parts, I only found out today, and if you press the modular part, it switches off.
So got this one out for now, with the necessary risks, I am aware of that, but my question is if anyone recognises this problem.