The Vaillant fan assembly is the component that pushes fresh air into the combustion chamber and allows the gas to be burned correctly. It also clears the burnt gas after the combustion process is complete. The boiler has safety parameters in place to make sure no gas can be passed through to the main burner if the fan is not functional.
Voltage is 230 V
Technical specification
Manufacturer Model No190260Brand NameVaillantCompatible WithECOmax PRO 18 E, ECOmax PRO 28 E, VU 186-O (2003-2010) and VU 286-O (2003-2010)