BoilerFaultCodesYour boiler's internal computer parts are not communicating correctly because they appear to be mismatched or incompatible with each other.
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 that has been fitted is not compatible with the KIM (boiler identification module)
What causes this fault?
This fault occurs when the boiler's main control board and its identity module are not 'speaking the same language' or are electrically mismatched. It usually happens after a repair where a technician has installed a replacement part that is the wrong version for your specific model, or if the internal data on one of the chips has become corrupted. Because these two brains must work in perfect harmony to ensure safe operation, the boiler shuts down until they are matched 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 9A361 — 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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