What the manual says
Manufacturer manualReset button pressed by mistake. Press reset button again
From this model's manual
Verified against the Worcester Bosch/Worcester Bosch Greenstar Cdi 2007 installation & service manual.
DIY fix possible
Press the 'Reset' button firmly once more to clear the error.Wait approximately 3 to 5 seconds for the boiler to restart.Verify that the display returns to its normal temperature reading or status code.
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Related fault codes
All 8 fault codes on the Greenstar CDi 27 CDi
Seeing a different code? Every code this model can display, in one place.