BoilerFaultCodesYour boiler's main internal computer has developed a serious internal fault and cannot safely manage the burner.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: The burner control unit, or KIM, is faulty – control unit may need replacing
What causes this fault?
This fault occurs when the boiler's internal computer chips suffer a critical communication failure or hardware breakdown. It is typically caused by electrical wear over time or a sudden power surge that damages the delicate circuitry required to manage the burner safely.
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.
Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like F0279 — no call-out fees, no surprises.
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Worcester Bosch GB162 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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