BoilerFaultCodesWhat the manual says
Manufacturer manualSystem fault boiler electronics / basic controller
Shared across the Greenstar 8000 Life 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?
This fault occurs when the boiler's central control board and the internal display unit stop talking to one another properly. The most common reason is a temporary software glitch or a loose connection in the internal wiring that prevents the computer from sending commands to the heating components.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Related fault codes
All 151 fault codes on the Greenstar 8000 Life Combi
Seeing a different code? Every code this model can display, in one place.
1-A11-A21-A31-A51-A61-A71-b21-b31-b41-b71-b81-C11-C21-C41-C61-d11-d21-d31-d41-d51-E11-E21-E31-E41-EA1-Eb200200 O201201 O202202 O203204204 O208214224224 V227227 V228228 V229232233234235237238242244245249251252253254257258259262263265268269273281283284305306306 V357358360360 V36236360481510101010 O101310171017 W1018101910211021 B1023102510371037 W10651065 B10681068 W10701071107210751075 W10761076 W20852908291029142915291629202920 V292329242925292629282931294029462946 V29482948 B294929502950 B295129522955295629572961296229632963 B29652965 B29662966 B2968296929702970 B29712971 B2972A-A5A-b2A-b4