Symbols And Safety Precautions; Explanation Of Symbols - Worcester GREENSTAR i SYSTEM User Manual
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SYMBOLS AND SAFETY PRECAUTIONS
1
SYMBOLS AND SAFETY PRECAUTIONS
1.1
EXPLANATION OF SYMBOLS
WARNING SYMBOLS
Safety instructions in this document are framed and identified by a
warning triangle which is printed on a grey background.
Electrical hazards are identified by a lightning symbol surrounded by a warning triangle.
Signal words indicate the seriousness of the hazard in terms of the consequences of not following the
safety instructions.
NOTICE indicates possible damage to property or equipment, but where there is no risk of personal
•
injury.
CAUTION indicates possible personal injury.
•
WARNING indicates possible severe personal injury.
•
DANGER indicates possible risk to life.
•
IMPORTANT INFORMATION
Notes contain important information in cases where there is no risk of
personal injury or material losses and are identified by the symbol shown on the left.
They are bordered by horizontal lines above and below the text.
ADDITIONAL SYMBOLS
Symbol
Meaning
a step in an action sequence
B
a reference to a related part in the document or to other related documents
a list entry
•
a list entry (second level)
–
Tab. 1
Symbols
4
6 720 644 864a (2010/10)
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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