Question about Rancilio Silvia Espresso Machine
I've also noticed that every time I pump espresso I now get a small leak from behind the drip tray area.
I work on industrial machines have done so for 15yrs
if your machine is anything like the prof rigs in terms of engineered design then what you are noticing is the pressure release valve working-letting any unused and pressure + water drain from the group head to a small plastic black box below the stainless housing panels/drip tray after extraction is complete.
What i describe should only happen after the shot stopped.
you should hear it and see it the water for about 2seconds after you stop the extraction manually/automatically
Posted on Jan 11, 2014
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Posted on Jan 02, 2017
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.
Posted on Feb 03, 2009
Posted on Mar 30, 2009
SOURCE: not heating up the water
3 things could be wrong. First is easy to check. With machine on, turn on the steam switch and after about a minut open the steam knob and push the middle switch. Check the water coming from the wand and see if its warm? If it is you need a brew thermostat. Unplug the machine. Remove the water tank. Remove the 4 screws that hold the top on and lift top off. The boiler has 2 thermostats on the top front of the boiler, and the one with the red dot is the brew thermostat and need replacing.
If that didn't fix your problem there is a reset thermostat on the front face of the boiler and has black wires going to it. There is a red button in the middle of the thermostat and needs to be pushed.
If that one didn't solve your problem you need a new heating element. You can do a continuity check on the terminals.
Posted on May 24, 2009
You need to change the group head gasket. They only last about 1 year and then should be changed. Get 2 because they usually fail on Friday and you have a party on Saturday.
The gaskets get hard from the heat and don't form to the filter any more so they leak.
When you get the new gasket.
Empty everything out of the machine (water tank, drip tray, etc.) Turn the machine upside down on a towel. This way you can see what your are doing.
Remove the filter screen and diffuser from the brew head. The black O-ring is your gasket. Carefully pry it out. Clean the opening good before you install the new gasket. Insert the gasket with the beveled side down (on the inside edge of the O-ring is the bevel). Once you have the gasket in place, use the portafilter to finish seating the gasket.
Posted on Oct 23, 2009
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