La Marzocco Linea Classic Hot Water Switch – Genuine OEM Replace a faulty hot water switch on your La Marzocco Linea Classic with this genuine OEM replacement. The hot water switch controls the solenoid valve that dispenses hot water for Americanos, tea, and rinsing — a failed switch means no hot water output or the hot water running continuously. Compatibility La Marzocco Linea Classic Symptoms of a Faulty Hot Water Switch No hot water dispensed when switch is activated Hot water running continuously without switch activation Switch feels loose, sticky, or unresponsive Intermittent hot water operation Frequently Asked Questions Is this a genuine La Marzocco part? Yes, this is a genuine OEM La Marzocco Linea Classic hot water switch. Can I replace this myself? Switch replacement involves working with mains voltage electrical connections. We recommend this be carried out by a qualified technician. Our Sydney-based team can assist — contact us to book a service.