BoilerFaultCodesTechnical description
Current status: Status code.
What causes this fault?
This code appears when the boiler is performing its internal self-checks and preparing its components before officially starting a heating cycle. It is a normal part of the startup sequence and usually indicates the system is simply waiting for a sensor or fan to reach the correct operating state. If the code stays on the screen, it typically means the control board is waiting for a signal that isn't arriving.
DIY fix possible
Wait 15 minutes to see if the boiler clears the code automaticallyEnsure your thermostat is calling for heat or hot waterRestart the boiler using the power button if the code persists for more than 30 minutes
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