F.67
Vaillant fault code
Vaillant F.67: electronics or flame fault
Engineer only
Vaillant describes F.67 on ecoTEC plus boilers as: electronics or flame fault. Possible causes Vaillant lists, for an engineer to check: implausible flame signal, electronics defective.
What you can safely do
There is nothing you can safely do yourself with this one. Leave the boiler off and book an engineer.
Call a Gas Safe engineer if
- Book a Gas Safe registered engineer.
Find a Gas Safe engineer near you
Opens the official Gas Safe Register search.
Applies to: ecoTEC plus. Codes can differ between models, so check your manual.