Worcester Bosch Greenstar Ri Boiler Error Codes

Worcester Bosch Greenstar Ri Boiler Error Codes

Fault Description System Behaviour
No light No power at control board
Light on Appliance on but not operating during demand
Slow flash ( mostly off flashes on) Ignition lockout
Slow flash ( mostly on flashes off) Flue overheat or heat exchanger overheat
Fast flash Volatile lockout sensor fan or code plug
2 pulses Check service mode switch is in minimum position
5 pulses Check service mode switch is in max position

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