BoilerFaultCodesTechnical description
Hotwaterhandlingmode:Requirement
What causes this fault?
This code appears when a hot water tap is opened or a shower is turned on, triggering the boiler's internal sensors to detect a flow of water. It signifies that the internal diverter valve has successfully shifted into position to prioritise heating your water. It is a normal part of the boiler's operation and simply confirms the system is responding to your request for heat.
DIY fix possible
No action is required as this is a normal status message and not a fault.Ensure your hot water taps are closed if you do not require water.Check your external controls or timer if the message stays on when no water is being used.
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