BoilerFaultCodesYour boiler is simply indicating that it is configured to operate as a 'Combination' boiler, which is a normal status message and not an actual fault.
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: Boiler type: Combi
What causes this fault?
The letter 'C' appearing on your display is not actually a fault, but a status message indicating the boiler is in 'Combi' mode. It shows that the unit is ready to deliver hot water to your taps and heating to your radiators. You will typically see this when the boiler is firing up or performing a routine operation.
DIY fix possible
No action is required as this is an information code rather than a fault.If the 'C' is flashing and you have no hot water, check that your taps are fully turned on.If the code persists alongside a lack of heating, try resetting the boiler using the mode dial.
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A boiler cover plan would cover faults like C — no call-out fees, no surprises.
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