What the manual says
Manufacturer manualBoiler in hot water mode
From this model's manual
Verified against the Worcester Bosch/Worcester Bosch Wb 47115 installation & service manual.
DIY fix possible
No action is required as this is an operational status message rather than a breakdown.Check that your hot water taps are fully turned off.Wait for the boiler to finish its current cycle, after which the code should disappear.
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Related fault codes
All 103 fault codes on the Greenstar 8000+ GR8701iW 30 S
Seeing a different code? Every code this model can display, in one place.
2002022032042082142242272282292322332342352372382422442452462472482492502512522532542572582592622632652682692732812832843053063573583603623636048118151010101310171018101910221023102510371065106810701071107210751076208529082910291429152916292029232924292529262927292829312940294629482949295029512952295529562957296129622963296529662968296929702971297229802981