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Neon SG on Ideal Classic FF 330

Your boiler is currently trying to light the burner and you are seeing the normal indicator for the ignition spark.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Flashes to indicate spark operation (stops after detection).

From this model's manual
Verified against the Ideal Boiler Classsic Combi Ff 280 installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

What causes this fault?

This indicator appears when the control board sends an electrical current to the ignition electrode to create a spark. It is a normal part of the starting process where the boiler attempts to light the gas to begin heating your home. If the light continues to flash without the boiler firing up, it usually means the spark is occurring but the gas is failing to ignite or the system cannot 'see' the flame.

DIY fix possible

Observe the light during start-upExpect the light to stop flashing once the flame is establishedNo action is required as this is normal operation

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