High
neon flashing (1st instance) on Potterton Performa 28i

Your boiler is failing to stay lit because it cannot detect that a flame has been successfully established.

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

Burner extinguishes after 10 seconds. Go to section ‘I’

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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