The group bleeding on a La Marzocco GS3 procedure should be done immediately after the boilers have been filled and prior to the machine warming up. Waiting for the machine to heat up may cause hot water to exit the bleeding screw and burn the user so it is very important to do while the machine is cold. Now that you have done that, now unplug the machine.1
1. Remove the Paddle & Group Cap Retention Screws
2. Replace the Manometer (MP only)
Finger tighten the manometer to where it was removed.
3. Loosen the Bleed Screw1. La Marzocco and its distributors assume no liability for injury and or damage occurred for failing to follow this warning.