High
2923 V on Worcester Bosch Greenstar 2000

Your boiler has detected an electrical communication problem with the internal gas valve, which is preventing it from safely managing the flow of fuel to the burner.

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

Unexpected feedback from the modulating/ current controlled gas valve

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

2922View →2924View →EAView →

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