High
7& on Remeha Quinta 85

Your boiler is failing to stay lit because it cannot reliably detect a flame or is struggling to breathe properly through its flue system.

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

Ionisation failure during boiler operation: After 4 restarts during 1 heat demand, flue gas recirculation, insufficient air flow, incorrect combustion.

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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