Worcester LPG Greenstar 12i System 2009 User Instructions
![Worcester LPG Greenstar 12i System 2009 Boiler manual cover](/images/GBrMrbjVsSoBLRIwOrWoWGWb/thumbs/thumb175x175.webp)
To adjust the water temperature, locate the control panel on the front of the boiler. Use the temperature dial to increase or decrease the water temperature. Refer to the user manual for specific guidance on the temperature settings.
First, check the gas supply and ensure the gas valve is open. Next, reset the boiler by turning off the power, waiting a few seconds, and turning it back on. If the issue persists, inspect the ignition electrode for damage or call a qualified technician.
It is recommended to service your boiler annually to ensure it operates efficiently and safely. Regular maintenance can help prevent unexpected breakdowns and extend the lifespan of your boiler.
Common error codes include EA (ignition failure), A1 (low pressure), and D1 (fan fault). For EA, check gas supply and reset the boiler. For A1, repressurize the system. For D1, inspect the fan for obstructions. Refer to the manual for detailed troubleshooting steps.
To repressurize the boiler, locate the filling loop, which is usually under the boiler. Open the valves to allow water into the system until the pressure gauge reads between 1 and 1.5 bar. Close the valves and check for leaks.
Loud noises can be caused by air in the system, low water pressure, or a faulty pump. Bleed the radiators to remove air, check the pressure, and if the noise persists, contact a heating engineer to inspect the pump.
No, the boiler requires electricity to operate the control systems and ignition. During a power outage, the boiler will not function until power is restored. Consider a backup generator if power outages are frequent.
Turn off the heating and use a radiator key to open the bleed valve at the top of the radiator. Allow the trapped air to escape until water starts to flow steadily, then close the valve. Check the system pressure and top up if necessary.
Turn off the boiler and check for visible leaks or loose connections. Tighten any loose fittings and inspect the pressure relief valve. If the leak continues, contact a professional engineer for repair.
A slight smell when the boiler is first turned on can be normal, as dust burns off the heat exchanger. However, if the smell persists or is strong, it could indicate a gas leak or other issue, and you should contact a qualified technician immediately.