Worcester Bosch Greenstar Ri Fault Codes

Regular Natural GasLPG 9-24 kW 2005-present

All 5 fault codes

Code	Severity	Plain English	DIY
2 pulses	High	Your boiler has been left in a manual testing mode after a recent service or inspection, which is preventing it from running normally.	Yes
5 pulses	High	Your boiler has been left in a manual testing mode after a recent service or inspection, which is preventing it from running normally.	Yes
Fast flash	High	Your boiler has detected a critical internal error with its fan or electronic memory and has shut down for safety.	Engineer
Light on	High	Your boiler is receiving power and trying to work, but it has failed to start the burner to provide heat or hot water.	Yes
No light	High	Your boiler appears to have no electrical power at all, meaning the screen and lights are completely blank and it will not provide any heating or hot water.	Yes

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