Rancilio Steam Boiler Thermostat – 150°C, 230V | Baby 9, Silvia Pro, Silvia Pro X

Rancilio Steam Boiler Thermostat – 150°C, 230V

Replace a faulty or inaccurate steam boiler thermostat on your Rancilio espresso machine with this genuine OEM replacement. Rated at 150°C and 230V, this thermostat regulates the steam boiler temperature on the Rancilio Baby 9, Silvia Pro, and Silvia Pro X — cutting power to the heating element when the boiler reaches the set temperature and restoring it as the temperature drops.

Specifications

• Type: Steam Boiler Thermostat
• Temperature Rating: 150°C
• Voltage: 230V
• Compatible Brand: Rancilio
• Condition: New / Genuine OEM
• Vendor: Rancilio

Compatible Models

• Rancilio Baby 9 (20150114–, 20150623–, 20191204–)
• Rancilio Silvia Pro (20210205–, 20220201–)
• Rancilio Silvia Pro X (20220607–)

Symptoms of a Faulty Steam Thermostat

• Steam boiler not reaching temperature or taking excessively long to heat
• Machine continuously overheating on the steam circuit
• Steam thermostat light cycling incorrectly
• Thermostat visibly burnt, cracked, or failed open/closed

Frequently Asked Questions

What does the steam boiler thermostat do?

The steam boiler thermostat is a temperature-sensing switch that monitors the boiler temperature and cuts power to the heating element when the boiler reaches 150°C. When the temperature drops below the set point, it restores power to reheat the boiler. A failed thermostat can cause the boiler to overheat, not heat at all, or cycle erratically.

Is this the brew thermostat or the steam thermostat?

This is the steam boiler thermostat, rated at 150°C. Single-boiler machines like the Rancilio Baby 9 and Silvia Pro use separate thermostats for the brew circuit and the steam circuit. The steam thermostat operates at a higher temperature than the brew thermostat. Contact our team if you need the brew thermostat instead.

Is this compatible with the Rancilio Silvia (non-Pro)?

This thermostat is listed for the Rancilio Baby 9, Silvia Pro, and Silvia Pro X. The standard Rancilio Silvia uses a different thermostat configuration. Contact our team with your machine model and serial number to confirm the correct part before ordering.