Boiler Reset - Worcester GREENSTAR i SYSTEM User Manual
Wall hung rsf gas fired condensing system boiler
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CONTROLS
3.1.4 BOILER RESET
In the event of a fault, the reset button will flash once per second and the blue mains indicator light
will flash.
1. To reset the boiler press the reset button for approximately five seconds.
When the boiler resets the reset button will no longer be illuminated.
2. The mains indicator will no longer be flashing.
Fig. 5
Reset button and mains light
If the fault remains and cannot be cleared by pressing the reset button, contact
Worcester, Bosch Group for assistance.
10
3
4
5
2
1
6
max
1.
2.
3
2
1
min
6 720 644 864a (2010/10)
reset
eco
4
e
6
max
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Questions and answers
I can’t get my green star I to stay operating it keeps turning off
The Worcester Greenstar i System boiler may keep turning off due to several possible reasons:
1. No Power – Check if the boiler has a permanent mains supply. Inspect Fuse F1 (2.5A) or Fuse F3 (0.5A) and the transformer. If faulty, replace the control board.
2. No Live Demand – Ensure there is a live demand at ST10-L from an external room thermostat or timer. Some older thermostats may not return proper voltage.
3. Diverter Valve Issue – If the boiler operates without a live demand signal, check that no permanent live feed is present at ST10-L from another source.
4. Incorrect Piping – Ensure the cold inlet and DHW outlet are correctly piped and not crossed.
5. Flow Turbine Issue – If the boiler is not operating during hot water demand, test the flow turbine.
Further troubleshooting may require checking the control board and other electrical components.
This answer is automatically generated