Bezzera BZ10: Replacing the Pressure Stat / Vacuum Breaker / Safety Valve ComboUpdated 5 months ago

What you'll need:

- 3mm allen key

- 17mm wrench (two of them)

First, you'll need to take the panels off of your machine. You may need to disconnect some of the silicone tubing to give yourself more room to move the reservoir bracket out of the way. 

1. Locate the Pressure Stat / Vacuum Breaker / Safety Valve combo in the back left corner of the machine.

2. Remove the silicone tubing from each side of the safety valve/vacuum breaker, as well as the wired connections on the pressure stat portion of the part.

3. Take the two 17mm wrenches and place one on the hexagonal area just underneath the black pressure stat, and one on the brass nut connecting the copper tubing. Using the top wrench to hold the part steady and bottom wrench to twist, squeeze the two wrenches together to break the bottom nut loose.

Using your fingers, you can now fully unthread the bottom nut and remove the combo from the compression fit copper tube. To replace it with a new one, follow these steps in reverse order. 

If you have any questions, or need further assistance, contact us at [email protected].