3-position 1-0-2 selector switch for Rancilio professional espresso machines, series Z11, S10 and S20. The switch allows the desired operating position to be selected (function/group 1, off in the middle, function/group 2), controlling activation of the machine's electrical circuits according to the position chosen.

• Type: 1-0-2 rotary selector switch
• Compatibility: Rancilio Z11, S10, S20

Ref. code 1.015.056.

Replace it when the switch no longer clicks precisely between positions, when electrical continuity is missing on one or both functions, or when the knob is broken or loose on its shaft.