LUCCA A53 Mini / Mini Vivaldi: Cleaning Fill Probe and Boiler Connection

A dirty fill probe can cause your espresso machine's steam boiler to over fill and leak excess water — follow these steps to remove and clean the fill probe on your Lucca A53. (Difficulty ☕☕)

Before proceeding with this procedure, it's important to drain the boilers and allow the machine to fully cool. Always unplug the machine from its power source before disassembling.

Tools required:

• Phillips screw driver
• 19mm socket wrench
• adjustable wrench
• metal brush / cleaning tool
• If needed, a new Fill Probe

1. Remove the top panel

2. Once the top panel is removed:

Re-install the fill probe.

If you need to remove the whole fill probe assembly from the boiler, follow these steps:

Reassemble the machine in the reverse order you repaired it and test it for a leak when the machine is heating the steam boiler.