I am finding the coffee does not come through the brewing head unless the coffee is not tampered at all, but then it does not produce a very good coffee as it is very watery
Coffee Makers & Espresso... - Breville - CM5 Espresso Machine & Coffee Maker
Answers & Comments
Adjust the grind, it is too fine.
Then either your pump is not producing enough pressure, or the shower screen needs to be cleaned.