Steam & Steam Boiler Maintenance

LUCCA M58: Fill Probe Inspection

Below are instructions for inspecting and cleaning a fill probe on a Quick Mill LUCCA M58 espresso machine. (Difficulty ☕)

Before doing this we recommend draining the steam boiler. The machine should be unplugged and cool to the touch.

Tools required:

  • adjustable wrench
  • wire brush

First, remove the panels.

LUCCA M58: Cleaning fill probe
LUCCA M58: Cleaning fill probe

Before re-installing the panels, plug the machine back in and power on. Allow the steam boiler to re-fill and reheat to test for pressure retention.

Check out the instructions for this procedure on a similar machine for more detail!