High Lockout
F030 on Intergas Xclusive 24

Your boiler has stopped working because a internal sensor that monitors the temperature of the flue or hot water system has developed a fault.

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 S3.

What causes this fault?

This fault occurs when the boiler's control board loses communication with the specific internal sensor responsible for monitoring system temperatures. The most common reason is that the sensor has electronically failed or the wiring connecting it to the main circuit board has become loose or damaged.

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

F010View →F011View →

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