Worcester Bosch Greenstar 12Ri Fault Codes
Regular Natural GasLPG 12 kW 2005-2016 Discontinued
GC Number: 41-311-73
Replaced by: Greenstar 12Ri Compact
This boiler uses LED flash patterns
Count the flashes in one repeating group before the pause. That number is your fault code. Do not reset until you have noted it. How to read fault codes →
Most common fault codes
Fast flash No light Slow flash (normally off, flashes on)
Your boiler has detected a critical internal fault and has locked itself out to prevent damage or unsafe operation.
Gas Safe engineer required · £120-350
Your boiler appears to have no power and the display is completely dead, meaning it cannot provide any heating or hot water.
May be DIY safe · £120-350
Your boiler has failed to light several times and has locked itself for safety, meaning you currently have no heating or hot water.
May be DIY safe · £120-450
All 8 fault codes
Worcester Bosch Greenstar 12Ri is discontinued — time for a new one?
Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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