Neon C Low

Alpha Neon C Fault Code

Also written as NEONC — same fault.

The Alpha Neon C fault code means: your boiler is operating exactly as it should and is currently burning gas to heat your water or radiators.. It appears on 1 Alpha model in our database.

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: Illuminated continuously - Burner is alight.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Alpha models that show the Neon C fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Alpha Neon C fault code information on this page is sourced and cross-checked against the official Alpha service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026