Baxi Fan (turbine) 5682150

The Baxi Fan (turbine) 5682150 is a flue gas fan designed for Baxi and Westen gas boilers. It operates at 230 V with a power consumption of 57 W. The fan is manufactured by Fime / EBM-Papst in Italy and is compatible with Baxi Main Four, Eco Four, Fourtech, Eco3 Compact, Main Digit, Westen Quasar, Pulsar, and Roca Neobit models. Its control modes include mains on/off, PWM, and 0-10 V, and it features an axial or tangential outlet orientation.

When selecting a replacement fan of this type, key parameters include air flow and pressure at the required operating point, direction and orientation of the outlet (axial or tangential), impeller diameter, voltage, control mode (mains on/off, PWM, 0-10 V), and flange mounting pattern. These must match the original part to ensure correct airflow and control response. The air pressure switch wired to the fan must confirm airflow before ignition proceeds.

Common failure modes include worn bearings, imbalance caused by dust or deposits on the impeller, a failed capacitor, and speed feedback errors that the boiler control reads as an airflow fault. Symptoms may include boiler lockout, error codes such as 'no draft' or 'fan problem', noise, vibration, or poor draft. Checking the fan for these issues can help diagnose problems.