BoilerFaultCodesYour boiler has detected an internal electronic error, often meaning it has lost its basic settings or a key component is disconnected.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Appliance fault (see page 26)
What causes this fault?
This fault occurs when the boiler's control system loses communication with its internal memory or pre-set configuration data. The most common reason is an electrical failure within the main circuit board or a loose connection to the code plug, which acts as the boiler's identity chip. Without these settings, the boiler shuts down as a safety precaution because it no longer knows how to operate correctly.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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A boiler cover plan would cover faults like CC — no call-out fees, no surprises.
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Worcester Bosch 29 HE Conventional 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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