Water doesn't come out from showerhead once the button is pressed - can hear the water pump going, the top of machine is warm so boiler is functioning.
Does water flow without the portafilter in place, if yes then check grind, if no then remove screw,filter and diffuser and press brew button, if water flows clean filter, if no water then the micro jet in the group head is blocked or the solenoid is clogged.
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