What the manual says
Manufacturer manualChimney sweep demand
Shared across the Greenstar 1000 range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
What causes this fault?
Maintenance notification
DIY fix possible
Locate the chimney sweep button on your boiler's front control panel.Press and hold the chimney sweep button for approximately 5 seconds.Wait for the display to return to the standard temperature reading and ensure the boiler resumes normal operation.
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All 106 fault codes on the Greenstar 1000
Seeing a different code? Every code this model can display, in one place.
2002012022032042132142222232242272282292322332342352372382402412452492502512522532542582592622632652682692702732752832842853053063413473513533573583603623633643655226041010101310181019102110231025106810731074208529082910291529162920292329242925292629272928293029312940294629482949295029512952295529562957295829592960296129622963296429652966296729722973297429802981