Instructions for flushing the boiler.

Steps for fully draining the boiler.

Instructions for replacing the group head gasket and shower screen.

Information on how the BZ group head works.

Steps for maintaining and rebuilding the group head.

Information on removing the machine's housing.

Regular wear items related to the group head.

Regular wear items related to the machine’s valves.

Instructions for maintaining steam and water valves.

Technical diagrams of the machine.

There is no or low flow from the hot water wand and the steam pressure gauge reads normally

There is flow from the hot water wand initially, but it drops quickly

There is no or low flow from the hot water wand and the steam pressure gauge reads normally

There is no or low flow from the steam wand and the steam pressure gauge reads normally

There is no flow from the steam wand and the steam pressure gauge reads zero

There is flow from the steam wand initially, but it drops quickly

There is no or low flow from the steam wand and the steam pressure gauge reads normally

The steam wand leaks at all times.

The steam wand leaks when the machine is hot.

The hot water wand leaks at all times.

The hot water wand leaks when the machine is hot.

Maintenance instructions for the group head.

The steam valve joystick is hard to move.

The steam valve knob is hard to move.

Maintenance instructions for the steam valve.

The water valve joystick is hard to move.

The water valve knob is hard to move.

Maintenance instructions for the water valve.

The pressure from the steam wand is fluctuating

There is no pressure from the steam wand

The pressure from the steam wand is too low

The valve joystick squeaks when moved.

The valve knob squeaks when moved.