Limescale: Rancilio Silvia Pro X Coffee Boiler

Here is a bad case of limescale on less than a two (2) year old Rancilio Silvia Pro X. This is AFTER 2 weeks of descaling. Limescale remained inside and needed another week of descaling as well as scrubbing with a wire brush.

The limescale caused a blockage in water flow which results in lack of water in the boiler. The heating element cracked from the lack of water, and then it tripped the GFIC, aka GFI outlet, circuit.

The grouphead was also caked with limescale. One of the bolts, holding the boiler to the grouphead, was frozen and broke in the hole of the grouphead. The grouphead was eventually removed to be descaled and have the broken bolt removed.

Another picture of inside of grouphead under boiler.

Rancilio Silvia Pro X grouphead before descaling. Boiler gasket was removed.