High
Neon 1 on Saunier Duval Xeon 30ff

Your boiler is not receiving any electricity, which means it has completely shut down and cannot heat your home or water.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

Is neon 1 lit? NO: Correct power supply problem.

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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