What does the Vaillant ecoTEC plus F61 fault code mean?
The F61 fault code on a Vaillant ecoTEC plus boiler indicates a problem with the system control, which may affect the boiler’s ability to operate correctly. This could be due to a malfunction in the control board or a communication issue within the system.
Common Causes
- Control Board Failure: The control board may have developed a fault, preventing it from sending or receiving signals properly.
- Wiring Issues: Damaged or loose wiring connections can disrupt communication between the control components, leading to the F61 error.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves electrical components that can be dangerous to handle without proper training.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F61 fault could be around £200 to £300, primarily due to the potential need for a new control board and the labour involved in diagnosing and fixing the issue.