Low
No code on Worcester Bosch Greenstar 35 CDi

Your boiler is simply going through a self-test cycle after a manual reset and should return to normal operation within a few minutes.

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.

Technical description

Reset button pressed by mistake.

DIY fix possible

Wait 5-10 minutes for the boiler to complete its internal startup checks.Ensure your thermostat is turned up high enough to call for heat.Check if the display returns to showing a temperature or a blue light.

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