Below you will find instructions for adjusting the pressure stat on non-PID Pro 500 espresso machines. This will adjust steam pressure in the steam boiler.
- 2.5mm Allen Key
- Flathead screwdriver
1. Remove the top panel of the machine with the 2.5mm allen key.
2. Remove the yellow cap from the pressure stat located on the right side of the machine if standing in front of it.
3. While the machine is on, use a flathead screwdriver to adjust pressure up (clockwise) or down (counterclockwise). When making adjustments do small turns of 1/4 rotations at a time and allow the machine to stabilize pressure.