High
Lockout on Chaffoteaux Talia Green 25

Your boiler has stopped working because it cannot light its internal flame or keep it burning, which has triggered a safety shut-down.

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 extinguishes: When the ionisation probe fails to detect flame presence. If a flame is not detected within 10 seconds, the safety solenoids will close. The red lockout indicator 35 illuminates and the display shows the error code.

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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