Worcester Greenstar 4000 GR4700iW C 2020 User Instructions
![Worcester Greenstar 4000 GR4700iW C 2020 Boiler manual cover](/images/hdLVybFvuVJWotrButTzWbOS/thumbs/thumb175x175.webp)
To adjust the water temperature on your boiler, use the control panel. Turn the temperature dial to set your desired temperature, typically between 60°C and 65°C for domestic hot water.
First, check the power supply and ensure the boiler is switched on. Verify that the thermostat is set correctly and the fuse is intact. If the issue persists, consult the manual for troubleshooting or contact a professional.
It is recommended to service your boiler annually to ensure it operates efficiently and safely. Annual servicing can help prevent potential breakdowns and extend the life of your boiler.
The error code EA indicates a flame detection fault. Check the gas supply and ensure the boiler is properly vented. If the problem continues, contact a qualified technician.
To increase the pressure, locate the filling loop beneath the boiler. Open the valves slowly while watching the pressure gauge, and close them once the pressure is between 1 and 1.5 bar.
A loud noise could indicate trapped air, low pressure, or a faulty pump. Bleed your radiators to release air and check the system pressure. If noise persists, consult a heating engineer.
To reset the boiler, press and hold the reset button on the front panel until the display turns off and on again. If the fault code reappears, seek professional assistance.
Yes, the Worcester Greenstar 4000 is compatible with smart thermostats. Installation should be done according to the manufacturer's instructions or by a professional.
Regularly check and maintain the pressure, bleed radiators, ensure adequate ventilation, and inspect for leaks. However, any internal servicing should be performed by a professional.
Possible causes include a faulty thermostat, low boiler pressure, or a blocked heat exchanger. Check these components and consult a technician if necessary.