Contents

preface
Contents
1 Symbols and safety precautions
- 1.1 Explanation of symbols
- 1.2 Safety precautions
- 2 General information
- 3 Opening the control panel cover
- 4 Overview of controls
- 5 Operation
  - 5.1 Switching the appliance on/off
  - 5.2 Switching on the central heating
  - 5.3 System controls
  - 5.4 Setting hot water temperature
  - 5.5 Frost protection
  - 5.6 Button lock
  - 5.7 Boiler reset
  - 5.8 Display codes
  - 5.9 Extreme cold weather
- 6 System Pressure
  - 6.1 Sealed heating systems
  - 6.2 External filling loop
- 7 Fault or Breakdown
- 8 Environment / disposal
- 9 Tips on energy saving
- 10 Your guarantee
- 11 Glossary
- 12 General Information
- 13 Quick reference guide

Worcester Greenstar 24 2012 User Instructions

Worcester Greenstar 24 2012 Boiler manual cover

Pages 36

Year 2012

Language(s)

of 36

Worcester Greenstar 24 2012 Boiler Specification

The Worcester Greenstar 24 2012 boiler is a compact and efficient solution designed for residential heating and hot water needs. This model, part of Worcester Bosch's renowned Greenstar range, is a condensing combination boiler, which means it is capable of providing both central heating and instantaneous hot water without the need for a separate hot water cylinder or cold water storage tank. The boiler boasts a 24 kW output, sufficient for a small to medium-sized home with one bathroom. It features advanced condensing technology, allowing it to achieve high efficiency ratings, thereby reducing energy consumption and lowering utility bills. The Greenstar 24 is ErP A-rated, underscoring its eco-friendly credentials and compliance with energy efficiency standards.

The boiler includes a range of intelligent design features, such as a user-friendly control panel with intuitive interfaces that allow for easy adjustment of heating settings. It is equipped with frost protection, ensuring reliable operation even in colder environments. The compact dimensions of the Greenstar 24 enable flexible installation options, making it suitable for various spaces, including kitchen cupboards. Additionally, the boiler is designed for quiet operation, enhancing home comfort without disruptive noise.

Safety and reliability are paramount, and the Greenstar 24 incorporates a range of safety features including a built-in expansion vessel and pressure relief valve. The unit is compatible with a variety of optional controls and accessories, including smart thermostats, to further optimize heating efficiency. The Worcester Greenstar 24 2012 boiler represents a blend of performance, reliability, and energy efficiency, making it a practical choice for homeowners seeking a dependable heating solution.

Worcester Greenstar 24 2012 Boiler F.A.Q.

How do I reset my Worcester Greenstar 24 boiler?

To reset your Worcester Greenstar 24 boiler, locate the reset button on the control panel. Press and hold the button for 3 to 5 seconds until the reset light turns off or the boiler restarts.

What should I do if my boiler is not igniting?

First, check the gas supply and ensure that the gas valve is open. Then, verify that the thermostat is set correctly. If the issue persists, it may require professional servicing.

How often should I service my Worcester Greenstar 24 boiler?

It is recommended to have your Worcester Greenstar 24 boiler serviced annually by a qualified technician to ensure optimal performance and safety.

Why is my boiler making loud noises?

Loud noises can be caused by air in the system, low water pressure, or a faulty pump. Bleeding radiators and checking the pressure gauge may help, but persistent issues should be checked by a professional.

How do I increase the water pressure in the boiler?

To increase the water pressure in your boiler, locate the filling loop (usually a silver hose) and slowly open the valves until the pressure gauge reads between 1 and 1.5 bar, then close the valves.

What is the ideal pressure for my Worcester Greenstar 24?

The ideal pressure for a Worcester Greenstar 24 boiler is between 1 and 1.5 bar when the system is cold.

How can I bleed my radiators to fix cold spots?

To bleed your radiators, turn off the heating system, use a radiator key to open the bleed valve slightly, and allow trapped air to escape until water starts to trickle out, then close the valve.

Why is my boiler losing pressure?

Pressure loss can be due to leaks in the system, a faulty pressure relief valve, or air trapped in the radiators. Check for visible leaks and bleed the radiators if necessary.

How do I set the temperature on my boiler?

Use the control panel on the boiler to adjust the heating and hot water temperature. Refer to the user manual for specific instructions relevant to your model.

What should I do if my boiler displays an error code?

Consult the user manual for the specific error code meaning. Some issues can be resolved by resetting the boiler, while others may require professional assistance.