High
2925 V on Worcester Bosch Junior 24i

Your boiler has stopped working because the internal control board is not receiving the correct signal from the valve that controls the gas flow.

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

Feedback from the modulating gas valve is too low

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

EAView →A1View →F0View →

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