Low
Neon SG1 on Ideal Classic NF30–NF80

Your boiler is currently trying to light the gas burner with a spark, which is a normal part of the starting process.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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.

Technical description

Flashes to indicate spark operation (stops after detection)

DIY fix possible

Check if your gas supply is active at the meterMonitor the light; it should stop flashing once the boiler successfully lightsIf it continues flashing without the boiler firing up, try resetting the boiler

Find a Gas Safe engineer
Search the official register →

Related guides you might find useful

Boiler keeps cutting out

Lockout fault with a reset-needed pattern.

Read →

Yellow or orange flame — CO safety

Safety-critical — turn off, read this.

Read →

Is boiler cover worth it?

Break-even maths on monthly cover.

Read →