Below you will find step by step instructions on how to adjust the pressure stat on the Rocket Appartamento.
2.5mm allen wrench
1. Remove the water tank cover and water tank from the machine.
2. Remove the top tray by removing the 6 screws shown here. It will lift off when all the screws are out.
3. Remove the inner top panel from the machine by removing the 2 7mm nuts holding it in place.
4. Adjust the flathead screw in the pressure stat to change pressure. Clockwise will increase boiler pressure, counterclockwise will decrease boiler pressure. Only make 1/2 turn adjustments at a time and allow the machine time to stabilize before further adjustment for safety reasons - too large of an adjustment may create too large of an increase in pressure which could damage the machine or cause injury.