High
60 70 80 on Chaffoteaux Serelia 24 MFFI

Your boiler has detected an issue with the air supply or exhaust gases, meaning it has safely shut down to prevent unsafe operation.

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

FAULT INFORMATION (represented by heating temperature indicator lights 30-80)

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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