High
2915 on Worcester Bosch Greenstar 4000

Your boiler's internal computer has detected a fault causing the internal fan to run continuously even when the boiler is not trying to heat your home.

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

Boiler electr. system fault | The fan keeps running after the post purge.

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

2916View →

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