BoilerFaultCodesTechnical description
Spark Generator Fault: Check wiring, if OK replace spark generator
What causes this fault?
This fault occurs when the boiler's internal electronic starter fails to send a high-voltage charge to the ignition probes. The root cause is usually a breakdown in the spark generator’s internal circuitry or a loose connection that prevents the electrical arc from jumping across the burners to light the gas. In some cases, the control board may be failing to send the initial command signal to begin the ignition process.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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