: Fill the water tank and ensure the filter holder (portafilter) is clean.
: If the machine is cool (wait 1 hour), add a descaling solution to the water tank and run it through the steam wand in 30-second bursts until empty. User Manuals | Bosch IE
: If the steam wand (8) only spits briefly, you may need to unscrew the steam nozzle with a coin and clear the holes in the sleeve (8a). Cleaning and Descaling