BoilerFaultCodesYour boiler is currently pre-warming its internal water supply so that hot water reaches your taps faster when you turn them on.
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: DHW comfort function: Pre-heating facility is switched on.
What causes this fault?
This is not a fault, but rather a status indicator telling you that the boiler's pre-heat function is active. The boiler periodically fires for a few seconds to keep its internal heat exchanger warm so that hot water reaches your taps almost instantly. It is a standard setting designed to improve your comfort and reduce water wastage.
DIY fix possible
Press the 'Service' button briefly to view the current status.If you wish to turn this feature off to save energy, press the 'Step' button until the display shows a 7.Use the '-' button to change the setting if you want to disable the pre-heat function.
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A boiler cover plan would cover faults like 7 — no call-out fees, no surprises.
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