Contents

Preface
- Please read these instructions carefully
- Dedicated to heating comfort
Contents
1 Symbols and safety precautions
- 1.1 Explanation of symbols
  - Warning symbols
  - Important information
  - Additional symbols
- 1.2 Safety precautions
2 General information
- Servicing
- Benchmark standard
3 Opening the control panel cover
4 Overview of controls
5 Operation
- 5.1 Switching the appliance on/off
  - Switching on for the first time
- 5.2 Switching on the central heating
- 5.3 System controls
- 5.4 Setting hot water temperature
  - eco button
  - Comfort mode, Eco button is not lit (default setting)
  - Economy mode, Eco button lit
- 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
  - Filling procedure:
7 Fault or Breakdown
- Technical Support
8 Environment / disposal
- Packaging
9 Tips on energy saving
- HEATING ECONOMICALLY
- CENTRAL HEATING SYSTEMS WITH ROOM THERMOSTAT/THERMOSTATIC RADIATOR VALVES
- ROOM THERMOSTATS
- NEW CONTROL SYSTEMS
- ROOF INSULATION
- WINDOW FRAMES
- RADIATORs
- DRAUGHTS
- CURTAINS
10 Your guarantee
- guarantee REGISTRATION
- For your own record:
11 Glossary
12 General Information
- Cleaning the outer casing
- Keep these instructions safe
13 Quick reference guide

Worcester Greenstar 24 2014 User Instructions

Worcester Greenstar 24 2014 Boiler manual cover

Pages 32

Year 2014

Language(s)

of 32

Worcester Greenstar 24 2014 Boiler Specification

The Worcester Greenstar 24 2014 Boiler is a highly efficient, compact, and reliable gas-fired combi boiler designed for residential use. It offers a central heating output of 24kW, making it suitable for small to medium-sized homes with one bathroom. The boiler operates with an efficiency rating of over 90%, ensuring reduced energy consumption and lower utility bills. Its dimensions, approximately 710mm x 400mm x 330mm, allow for flexible installation in tight spaces. The unit features a user-friendly interface with simple controls for ease of operation and maintenance.

The Greenstar 24 is equipped with a SEDBUK Class A rating, highlighting its environmentally friendly performance. It includes advanced heat exchanger technology, enhancing heat transfer while minimizing energy loss. The boiler incorporates frost protection, ensuring reliability during colder months. Worcester's innovative low-energy pump reduces electricity usage, contributing to its overall energy-efficient design.

This model supports a flow rate of up to 10 liters per minute, providing instant hot water on demand. It is compatible with a range of optional controls, including wireless thermostats and weather compensation sensors, allowing for tailored heating solutions. The Greenstar 24 is designed with a built-in expansion vessel and pressure relief valve for safe operation. It also includes a range of diagnostic features for straightforward troubleshooting and servicing.

Having been engineered with quality components, the Worcester Greenstar 24 2014 Boiler maintains a reputation for durability and longevity. Its robust construction and reliable performance make it a popular choice for homeowners seeking a cost-effective and environmentally conscious heating solution.

Worcester Greenstar 24 2014 Boiler F.A.Q.

How do I reset my Worcester Greenstar 24 2014 boiler?

To reset your Worcester Greenstar 24 boiler, press the 'reset' button on the control panel for a few seconds until the reset light goes out.

What should I do if my boiler is not igniting?

Check the gas supply, ensure there are no airlocks, and verify that the pressure is within the recommended range (1.0-1.5 bar). If issues persist, consult a professional technician.

How can I increase the pressure on my Worcester Greenstar 24 boiler?

Locate the filling loop beneath the boiler, open the valves to allow water to flow into the system, and watch the pressure gauge until it reads between 1.0 and 1.5 bar. Close the valves after achieving the desired pressure.

How often should I service my Worcester Greenstar 24 boiler?

Your Worcester Greenstar 24 boiler should be serviced annually by a qualified engineer to ensure it operates efficiently and safely.

What do the error codes on my Worcester Greenstar 24 mean?

Error codes indicate specific issues with your boiler. Refer to the user manual for a list of codes and their meanings, or consult a qualified technician for diagnosis and repair.

How do I bleed my radiators connected to the Worcester Greenstar 24 boiler?

Turn off the heating system, use a radiator key to open the valve at the top of the radiator, and release air until water starts to escape. Close the valve and check the boiler pressure.

Why is my Worcester Greenstar 24 boiler making loud noises?

Loud noises may be due to trapped air, low water pressure, or limescale buildup in the heat exchanger. Bleed the radiators, check pressure levels, and consider a professional inspection if the problem persists.

What should I check if my boiler is not heating water effectively?

Ensure that the thermostat settings are correct, check for any error codes, and verify that the water pressure is adequate. If these are all fine, it may require professional assessment.

How do I set the timer on my Worcester Greenstar 24 boiler?

Use the timer control on the boiler interface or the external programmer. Follow the specific instructions in your user manual to adjust the on/off times and heating schedules.

What can cause low pressure in the Worcester Greenstar 24 boiler?

Low pressure can be caused by leaks in the system, recent bleeding of radiators, or a faulty pressure relief valve. Inspect for visible leaks and consult a technician for thorough troubleshooting.