BoilerFaultCodesYour boiler's internal computer parts are failing to talk to each other, meaning the system cannot receive the instructions it needs to start up.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: No Connection To Primary Pcb
What causes this fault?
This fault occurs when the boiler's internal control boards lose the ability to speak to one another, often due to a loose connection or a component failure. The most common reason is that the main control board has developed an electrical fault or the wiring linking the display screen to the central computer has degraded.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Could it be time for a new boiler?
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