BoilerFaultCodesWhat the manual says
Manufacturer manualSystem stand by
Shared across the Greenstar 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.
DIY fix possible
Check your room thermostat to ensure the target temperature is set higher than the current room temperatureEnsure your heating timer or programmer is currently set to an 'On' periodIf your hot water is also not working, verify that the hot water cylinder thermostat or combi timer settings are active
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Related fault codes
All 78 fault codes on the Greenstar i
Seeing a different code? Every code this model can display, in one place.
0.09U 233200201202204208226235265268270283284305328356357358360363A1 281A7A7 808A8A8 361ACB1b7 257C1 / 264C4 / 273C4 237C6C6 / 215C6 / 216C7 / 214C7 / 217CC 800D4 341E2 / 222E2 / 223E2 / 350E2 / 351E9E9 / 276E9 224EAEA / 227EA 227EA 229EA 261EH 258F0 238F0 239F0 258F0 262F0 272F0 280F0 290F1 259F1 263F7F7 228FA / 306FA 306FdFd / 231H03H08H09H11H13h13/H13H29II -internal errort -