Your selected range

Ascaso Boiler Pressure Switch

The espresso coffee machine pressure switch needs to be replaced if:

  • The safety valve is venting due to the boiler overheating
  • The group temperature is too hot ie over 95C
  • Not getting enough steam from the wand.

A new pressure switch is factory preset so will not need to be adjusted - it will restore your correct boiler and group temperature. Most boilers are set at 126c which is approx 100c for water and 94c for group.

Ascaso coffee machine spare parts

Dream Arc Basic Ascaso steel Ascaso steel pro. Ascaso POD Dream Arc Basic
Dream Arc Basic Ascaso POD Ascaso PID Ascaso Steel Pro Ascaso Steel
Ascaso POD Ascaso steel Ascaso steel pro. Dream Arc Basic Ascaso POD
Ascaso Baby T  Bar One Bar Barista Ascaso Grinder Parts

Our extensive range of Ascaso spare parts and accessories are available for UK, USA, Ireland, Europe and worldwide. We have sold Ascaso spare parts since 2005 and carry most parts.

1 - 1 of 1 Products
1 - 1 of 1 Products

Q. How does a pressure switch on an espresso coffee machine work?

A. As the temperature builds up in the boiler, steam increases creating pressure inside the boiler. This extra pressure triggers the spring to rise, causing the contacts to open and power is removed from the element.

Q. Can you adjust the pressure switch on the coffee machine?

A. The pressure switch  is controlled by a screw on the top of the pressure switch. Turning the screw clockwise decreases the pressure, and turning it anticlockwise increases the pressure.

Q. At what pressure should I extract espresso coffee?

A.Nine bars of pressure, which is nine times the weight of air at sea level, is considered ideal for extracting espresso

Q. What happens if espresso pressure is too high?

When the pressure is too high, it can lead to over-extraction, which means that more of the coffee grounds are dissolved into the water. This can result in an overly bitter and unpleasant taste.

In 1962, Jesús Ascaso started, producing and distributing spare parts for espresso coffee machines. Currently, Ascaso employs 50 professionals and sells its products in over 95 countries, with all designs and manufacturing in Barcelona.Blue Star Coffee carry most available spare parts for Ascaso home and professional models such as Ascaso Dream, Ascaso Pid, Ascaso Steel, Ascaso Arc, Ascaso Basic, Ascaso Ellipse, Ascaso Baby T, Ascaso barista, and Ascaso Bar.