BoilerFaultCodesTechnical description
No flame during startup
What causes this fault?
This fault occurs when the boiler's internal sensor fails to detect a flame after several attempts to ignite the gas. The most common reasons are a lack of gas supply to the unit, a worn-out ignition spark, or a buildup of debris on the internal probes that monitor the combustion process.
This fault often occurs during the first cold snap of autumn when a boiler that has been idle over summer is suddenly required to work at full capacity.
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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