The Vaillant 0020197029 Fan is a genuine replacement combustion airflow component engineered for use in compatible Vaillant boilers. It draws the correct volume of air into the combustion chamber and expels flue gases safely through the flue system, supporting stable ignition, efficient combustion and consistent heat delivery. When a fan becomes worn, noisy or begins to fail, boilers can experience ignition delays, unusual noises or safety lockouts, so fitting the correct OEM part is essential for restoring dependable and safe operation.

This fan is compatible with Vaillant boilers that reference part number 0020197029 in their technical documentation. To ensure proper fitment and reliable performance, always verify the part number on your existing fan or consult your boiler’s service information before installation, as airflow components vary between models and configurations.

Supplied ready for direct replacement, the 0020197029 Fan connects with the boiler’s original mounting points and electrical harness without modification when installed by a qualified engineer. Choosing this genuine Vaillant component helps ensure proper combustion airflow, improved ignition reliability and consistent heating and hot water performance in compatible boilers.