What does the Vaillant ecoTEC plus F41 fault code mean?
The F41 fault code indicates a problem with the gas pressure sensor in the Vaillant ecoTEC plus boiler. This sensor is crucial for monitoring the gas supply pressure, and a fault can lead to improper combustion and potential safety risks.
Common Causes
- Faulty Gas Pressure Sensor: The sensor may be malfunctioning or damaged, leading to incorrect readings.
- Blocked Gas Supply: A blockage in the gas line can cause pressure issues, affecting the sensor’s performance.
Can I fix it myself? (DIY)
It is strongly advised to call a Gas Safe Engineer for any issues related to gas pressure sensors, as they involve gas and electrical components that can be dangerous if handled improperly.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing a faulty gas pressure sensor in a Vaillant ecoTEC plus boiler is around £150 to £250. This includes the cost of the part and labour, as the sensor itself typically costs between £50 and £100.