BoilerFaultCodesYour boiler's electronic control board has been set up with incorrect configuration settings or a missing physical connection, preventing it from operating.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Jumper tag fault
What causes this fault?
This fault occurs when the boiler's main control board is missing a small physical plug, known as a jumper, which tells the computer exactly which model it is installed in. It usually happens after a new circuit board has been fitted but not configured correctly, or if a component has vibrated loose over time. Without this specific hardware setting, the boiler shuts down for safety because it doesn't know its own operating limits.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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