The Baxi 5137529 SE Fan Pressure Switch is a genuine replacement component designed to monitor and control the airflow created by the boiler’s fan in compatible Baxi SE (Standard Efficiency) models. This sensor ensures the correct pressure differential is present in the flue and combustion system before allowing the boiler to proceed with ignition. By confirming proper airflow, it helps prevent unsafe firing conditions, reduces false lockouts, and supports efficient and reliable boiler operation. Manufactured to Baxi’s quality standards, this fan pressure switch should be fitted by a qualified heating engineer during servicing, maintenance, or when replacing a worn or faulty switch.

Compatibility for the 5137529 SE fan pressure switch includes Baxi Maxflo, Performa, and System boiler models that utilise this specific pressure switch specification. Always verify your boiler’s model and part requirements before installation to ensure correct match and performance.

Using a genuine Baxi fan pressure switch helps maintain safe airflow monitoring, supports smooth ignition control, and contributes to the dependable performance and long-term reliability of your central heating and hot water system.