The fan is the component that injects fresh air in to the combustion chamber, allowing the gas to be burnt correctly. It also forces out the toxic 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 has ceased functioning .
Supplier Part Number: S53556
Technical specification
Waist Sizeaa44cj94fwToilet Cistern CapacityFTW--ERP RatingNot ApplicableSupplier Part NumberS53556Brand NameBroag Remeha