What does the Vaillant ecoTEC exclusive F61 fault code mean?
The F61 fault code on a Vaillant ecoTEC exclusive boiler indicates a problem with the internal temperature sensor. This can lead to incorrect temperature readings, affecting the boiler’s performance and efficiency.
Common Causes
- Faulty Temperature Sensor: The internal sensor may be malfunctioning or damaged, leading to inaccurate temperature readings.
- Wiring Issues: Damaged or loose wiring connections to the sensor can cause communication failures, triggering the fault code.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves electrical components and safety risks. Attempting to fix it yourself could lead to further damage or safety hazards.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for fixing the F61 fault code is around £150 to £250. This includes the cost of replacing the faulty sensor and any necessary labour charges.