BoilerFaultCodesTechnical description
Software incompatibility. Incorrect user interface or main board. Incorrect product code
What causes this fault?
This fault occurs when the boiler's internal control boards are unable to 'talk' to each other, often after a component has been replaced or due to a memory error. It physically happens because the software version on the main circuit board does not match the version on the display panel, leading the boiler to shut down as a safety precaution. The system effectively becomes confused and stops working because it cannot verify that the internal instructions are consistent across all parts.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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