BoilerFaultCodesTechnical description
Temporary fault code (Refer to section 7.10)
What causes this fault?
This fault occurs when the boiler's internal electronics detect a brief interruption or a glitch in the data being sent between sensors. The most common cause is a sensor that is starting to wear out or a small electrical disturbance on the main control board that makes the system pause to re-check its readings.
DIY fix possible
Monitor the boiler to see if the code clears automaticallyPress the reset button if the code remains or turns into a lockoutEnsure power to the boiler has not been interrupted or fluctuated
Find a Gas Safe engineer
Search the official register →