BoilerFaultCodesYour boiler's internal computer is reporting an error with its software version or internal memory communication.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Control device version: Software version of the control unit.
What causes this fault?
This fault occurs when the boiler's main control board loses communication with its internal memory or cannot verify its own software. It is essentially a digital handshake failure between the central processing unit and the specific data chip that tells the boiler how to operate safely. The most common reason is an electronic component failure within the printed circuit board or a corruption of the software on the code plug.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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