High
24 on Main Combi 30 HE

Your boiler has stopped working because it cannot light its burner properly, which is often due to a blockage in the internal waste pipe that clears away water created during heating.

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

Flame Failure or Blocked Condensate Drain

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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