What the manual says
Manufacturer manualStarting up boiler
From this model's manual
Verified against the Worcester Bosch Greenstar 27cdi installation & service manual, page 82.
DIY fix possible
Wait 2-5 minutes for the boiler to complete its start-up sequenceIf the code does not clear, switch the boiler off at the fused spurWait 30 seconds and switch it back on to force a re-start
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