BoilerFaultCodesYour boiler is working normally and is currently running to provide heating for your radiators.
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: CH operation: The boiler is operating in central heating mode.
What causes this fault?
This is not a fault, but a status indicator showing that your boiler has received a signal from your thermostat to provide heat. It occurs when the internal pump and burner activate to circulate hot water around your radiators. Your system is functioning exactly as it should be during this time.
This code is most frequently seen during the autumn and winter months when your central heating is scheduled to run more often.
DIY fix possible
This fault may be fixable without an engineer. Check your manual first.
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A boiler cover plan would cover faults like 5 — no call-out fees, no surprises.
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