High
2940 on Worcester Bosch Greenstar 8000 Style

Your boiler is struggling because it is not receiving the correct amount of electrical power, which is stopping it from operating normally.

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

Low voltage

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

2970View →2971View →

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