My guess is the steam wand is clogged with milk. This is a common problem. Try a pipe cleaner or something similar.
SOURCE: water will not come through the steam wand
I had the same problem. I took the steam wand off, and checked for steam out of the unit. It was OK, so I stuck a thin wire up through the steam wand and dislodged what look like pieces of a green washer or O-ring.
In short...the wand was plugged.
SOURCE: no water through group head
Hi
More than likely your 3 way valve is stuck. It is located behind the front panel and when the 2 screws are removed it slides to the right. Unplug your machine before working on it. The 3 way valve is on the left and you can remove the dispersion tube on the bottom(unscrews) 14mm nut holds the solenoid on and you can slide the solenoid down the shaft. The big nut at the top of the shaft will unscrew and there you will fin the solenoid inside with a big spring. If its not stuck it will slide out and you probably need a new 3 way valve, but more than likely its stuck. Some times just tapping the nut on something hard will unstick the solenoid. Clean good and reinstall.
SOURCE: Rancilio Silvia coffee machine worked once and the
Remove the top panel one of the thermostats on the tank tripped, reset thermostat, and turn machine on.
SOURCE: Rancilio Silvia: The steam works only for about 10 seconds
Remove the top panel and check the 3 thermostat on the machine one of them is not functioning properly, find the wire to the steam switch and trace it to the thermostat.
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