BoilerFaultCodesYour boiler's internal computer has suffered a technical malfunction and can no longer control the heating system safely.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: internal failure - electronic
What causes this fault?
This fault occurs when the boiler's main control board experiences a critical electronic failure that prevents it from processing data correctly. It is usually caused by a breakdown of the microscopic components on the circuit board or a terminal communication error between the internal sensors and the main processor.
This issue can sometimes be triggered during the transition into winter, as the sudden increase in electrical demand and heat within the casing can cause aging electronic components to fail.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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