Hello everyone

So my friends have this Evo2 2 group from dalla corte. After opening her up we notice mineral deposits from the pump and flow meter indicating a past leak, see photos. The machine does not leak at the moment

We also measured temperatures with thermofilters, both groups would have 2c+ from the set temperature

The pump still works fine and is adjustable. The brew group still works fine

Anyone would have an idea on the cause/signs of the leaks? Is the temperature a major problem indicating scaling?