BoilerFaultCodesYour boiler's internal computer chips are not communicating correctly because an incorrect or incompatible part has been installed.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: The KIM that has been fitted is not compatible with the burner control unit
What causes this fault?
This fault occurs when the boiler's main control board cannot verify the identity of the specific model it is supposed to be operating. It is almost always caused by a mismatch between the interchangeable memory chip, known as the KIM, and the boiler's internal computer after a repair or part replacement. Think of it like trying to run modern software on an incompatible, older computer; the two components simply cannot speak the same language.
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 360 — 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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