BoilerFaultCodesYour boiler's main control board and the display panel are having trouble talking to each other, which has caused the system to stop working.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: User interface / Main PCB communication fault
What causes this fault?
This fault occurs when the data connection between the boiler's main brain and the control panel on the front of the unit is broken. The most common cause is a loose internal wire or moisture damage affecting the delicate circuit boards, preventing them from sending signals to each other. Because the control panel can no longer 'talk' to the engine of the boiler, the system shuts down as a safety precaution.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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