This morning the Neovan chiller flow completely stopped and the Neovan amplifier went in protection mode (the chiller is the one shown photo 2)

We found the filter very dirty (eventhough it was changed yesteday) and the pump which was broken. In fact, Fabio and Sergio dismounted the chiller and found some parts completely crumbled (photo 4 and 5), which can explain the fact that the filter became dirty in a few hours.

We replaced the chiller with the spare (photo 3).

The flow with the spare is again the nominal value (around 6).