Vaillant · Turbomax Plus Boilers
This code indicates an electronic malfunction related to the Turbomax Plus boiler's flame detection system. This can prevent the boiler from igniting or maintaining a flame.
Click steps to track your progress.
Attempt to reset the boiler by turning off the main power, waiting 30 seconds, and turning it back on.
Ensure there are no visible obstructions around the boiler's air vents.
If the error persists, contact a qualified heating engineer as this fault often requires specialized electronic component diagnostics.