9
System Pressure
GREENSTAR HIGHFLOW CDi
ErP
– 6 720 815 063 (2015/05)
3.6 FAULT CONDITION
In the unlikely event of a fault occurring while the boiler is in operation the reset button and the main power indicator will flash.
The display will show a fault code.
To reset the boiler:
▶ Press the reset button for three seconds.
The reset button and the mains power indicator will stop flashing.
The boiler will function normally, dependent on programmer and room thermostat settings.
4 SYSTEM PRESSURE
4.1 SEALED HEATING SYSTEMS
This boiler is fitted to a sealed heating system which is pre-pressurised. Your installer will advise you of the minimum and maximum
pressure indicated on the pressure gauge.
▶ Check regularly that the pressure is maintained.
▶ If the pressure gauge reads less than 1 bar then the system requires re-charging.
▶ Contact your installer or maintenance engineer if a permanent significant decrease or increase in pressure is indicated on the
pressure gauge.
The filling method is a integral filling loop fitted valves and flexible hose.
If the fault cannot be cleared by pressing the reset button:
▶ Refer to the fault finding section on page 15 of this user guide.
▶ Call Worcester, Bosch Group, giving a description of the fault and, if possible, the fault code from the seven
segment display. Alternatively contact other Gas Safe registered personnel for assistance.
6720806267-07.1Wo
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