BoilerFaultCodesYour boiler has detected that you have turned on a hot water tap and is currently working to provide hot water to your home.
This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.
Technical description: Hot water switch on
What causes this fault?
This code appears when the flow sensor inside the boiler detects that water is running through the hot water pipe. It is the boiler's way of confirming that it has successfully registered your request for hot water and is firing up the burner to heat it. This is a normal operational signal rather than a malfunction of any internal components.
DIY fix possible
No action required; this is a status code, not a fault code.Simply turn off your hot water tap to see the code change back to its standby state.
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