High Lockout
F011 on Intergas Xclusive 24

Your boiler has detected a problem with one of its internal temperature sensors, which means it cannot accurately measure heat levels and has stopped working for safety.

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

Sensor fault S0.

What causes this fault?

This fault occurs when the boiler's main internal thermometer fails to report an accurate temperature reading to the control board. It is usually caused by the sensor's internal components wearing out over time or a loose connection in the wiring that prevents the signal from getting through.

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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Related fault codes

F012View →F014View →

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