Product Information: The fan is the device that injects fresh air in to the combustion chamber, allowing the gas to be burnt correctly. It also clears the burnt gas after the combustion process is complete. The boiler has safety protocols in place to make sure no gas can be passed through to the main burner if the fan is not functioning correctly.
This part is present in 7 different boilers in the Saunier Duval range including the Saunier Duval THEMAPLUS F 23 E , THELIA 23 E NC , THELIA 23 , THELIA 23 E , THELIA 23 NC .