Low
2945 V on Worcester Bosch Greenstar 2000

Your boiler is switching itself on and off too frequently, which has triggered a temporary lockout to prevent internal damage.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Too many short heat demands in short time period

From this model's manual
Verified against the Worcester Bosch Greenstar 27cdi installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check that all radiator valves are fully open to allow water to circulateTurn off the power to the boiler, wait 30 seconds, and turn it back onReset the boiler using the button on the control panel

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