Boiler and element
The boiler and what sits on it
Bezzera's manual says: if the machine is malfunctioning, do not try to repair it yourself; call technical assistance. Every BZ10 carries an anti-tamper seal that cannot survive opening the case, and Bezzera grants no warranty on a machine whose seal is removed or damaged (12 months from the invoice). Treat this as technician work.
From Bezzera's 2020 table: a vertical boiler (5320520.01BL-AL), an element on a bottom flange (1100 to 1300 W at 220 to 240 V; 1200 W at 120 V) sealed by a Ø73 × 3 Viton O-ring and held by six M6 × 14 hex screws, a 130 °C safety thermostat, a level probe and the pressurestat.
The manual: if the element overheats, the safety thermostat cuts the power. Only an authorised technician should find the cause and press its red reset button, reached from underneath (fig. 07).
How a technician changes the element
Bezzera's manual says: if the machine is malfunctioning, do not try to repair it yourself; call technical assistance. Every BZ10 carries an anti-tamper seal that cannot survive opening the case, and Bezzera grants no warranty on a machine whose seal is removed or damaged (12 months from the invoice). Treat this as technician work.
D.R. Trading's video for BZ-series machines, read from the pictures.
- Turn the machine upside down on a cloth.
- Undo the element protection plate (M4 × 16 socket screws).
- Note where each wire goes, then pull them off the element.
- Undo the six M6 hex screws on the flange with a socket and ratchet.
- Drop the element out and fit a new flange O-ring, Ø73 × 3.
- Refit the element, screws, wires and plate.