@karl_kaefer You may want to check if you are seeing any leaked water inside the machine. May be the brew circuit water is leaking externally.
Another thing is: When you pull a shot, does the pump start immediately to initiate PI or if you hear the brew boiler is getting filled first? If latter, it may be the brew circuit leaks as Dave said.
If this is the case, @DavecUK, I don’t know if the leak could also happen backwards from the brew circuit. If it can, the valve towards the pump is probably too hot to touch at idle. But, we can’t leave a leaking group, can we? Do you think the gasket requires a replacement? It’s almost a new machine but runs 11 hours a day.
May be, I am over thinking here. 😊
