BoilerFaultCodesYour boiler's internal computer has encountered a critical electronic failure and can no longer control the heating or hot water safely.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Printed circuit board (PCB) AGC01 fault
What causes this fault?
This fault occurs when the boiler's main control board suffers a hardware malfunction or a breakdown in electronic communication. The most common reason is a component failure on the circuitry itself or an electrical short caused by wear and tear or moisture ingress over time.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
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A boiler cover plan would cover faults like A63 — no call-out fees, no surprises.
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Ferroli Bluehelix Tech is discontinued — time for a new one?
Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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