Contents

preface
- Please read these instructions carefully
- Dedicated to heating comfort
Table of contents
1 Key to symbols and safety instructions
- 1.1 Key to symbols
  - Warnings
  - Important information
  - Additional symbols
- 1.2 General safety instructions
2 General Information
- Servicing
- BENCHMARK STANDARD
3 Operating the boiler
- 3.1 Controls
- 3.2 Switching the boiler ON/OFF
- 3.3 Setting the central heating temperature
  - 3.3.1 Controlling the central heating
- 3.4 Setting the hot water temperature
- 3.5 Frost protection (for the boiler)
- 3.6 Frost protection (for the heating system)
- 3.7 Domestic hot water pre-heat
- 3.8 Holiday setting
- 3.9 Fault condition
4 Maintenance
- 4.1 Re-pressuring the heating system
- 4.2 Fault finding
- 4.3 Error codes
- 4.4 Extreme cold weather
5 General notes
- Pluming and condensate drain
- Pump anti-seizure
- Clearances
- Ventilation
- Sealed heating systems
- Central heating systems
6 Fault or Breakdown
- Technical Support
7 Tips on energy saving
- Heating economically
- New control systems
- Central heating systems with room thermostats and thermostatic radiator valves
- Room thermostats
- Roof insulation
- Window frames
- Curtains
- Draughts
- Radiators
8 Your guarantee
- guarantee REGISTRATION
- For your own record:
9 Glossary

Worcester Greenstar 29CDi 2014 User Instructions

Worcester Greenstar 29CDi 2014 Boiler manual cover

Pages 24

Year 2014

Language(s)

of 24

Worcester Greenstar 29CDi 2014 Boiler Specification

The Worcester Greenstar 29CDi 2014 Boiler is a highly efficient, wall-mounted condensing combi boiler designed for residential use. It is engineered to deliver both central heating and instantaneous hot water, making it a versatile solution for medium-sized homes. The unit features a compact design, which allows for flexible installation in various locations, including kitchen cupboards and small utility spaces.

The 29CDi model boasts a heat output of 30kW for central heating and a DHW flow rate of up to 12.3 liters per minute, ensuring a reliable supply of hot water for showers and taps. It operates with an impressive efficiency rating of 89.2%, contributing to lower energy bills and reduced environmental impact. The boiler is ErP A-rated for both heating and hot water, aligning with modern energy standards.

This model incorporates advanced technology, including a user-friendly digital display for easy operation and diagnostics. It supports weather compensation and load compensation controls, optimizing performance and comfort based on external conditions. The boiler is compatible with a range of smart thermostats, enhancing convenience and energy management.

Safety and reliability are prioritized, with built-in frost protection and a robust heat exchanger designed for longevity. The Worcester Greenstar 29CDi is also equipped with a low-energy pump, reducing electricity consumption. Installation is facilitated by a pre-plumbing jig and a wide range of flue options, accommodating various installation scenarios.

Overall, the Worcester Greenstar 29CDi 2014 Boiler is an excellent choice for those seeking efficiency, reliability, and ease of use in a compact form factor, backed by Worcester's reputation for quality and service.

Worcester Greenstar 29CDi 2014 Boiler F.A.Q.

How do I reset my Worcester Greenstar 29CDi 2014 boiler?

To reset your Worcester Greenstar 29CDi boiler, press and hold the reset button for 3 seconds. The reset button is usually located on the front panel of the boiler.

What should I do if my boiler is not heating water?

Check if the boiler is receiving power and the thermostat is set correctly. Ensure there is no issue with the gas supply and that the water pressure is within the recommended range (1-1.5 bar when cold).

How can I adjust the water temperature on my boiler?

Use the temperature control knob on the front of the boiler to adjust the water temperature. Turn it clockwise to increase and counterclockwise to decrease the temperature.

Why is my boiler making a loud noise?

Loud noises can be due to air in the system, low water pressure, or a failing pump. Bleed the radiators to remove air and check the pressure gauge to ensure it is at the correct level.

What maintenance does my Worcester Greenstar 29CDi need?

Regular maintenance includes annual servicing by a qualified engineer, checking and cleaning the flue, inspecting the gas pressure, and ensuring the boiler components are functioning correctly.

How do I bleed a radiator connected to my boiler?

Turn off the heating system and wait for it to cool. Use a radiator key to open the bleed valve slightly and release trapped air until water starts to drip out, then close the valve.

What does a flashing blue light on my boiler indicate?

A flashing blue light typically indicates a flame detection problem. Ensure the gas supply is on and there are no blockages in the flue. If the issue persists, contact a qualified engineer.

How can I increase the water pressure in my boiler?

Locate the filling loop, usually beneath the boiler. Open the valves to allow water into the system until the pressure gauge reads between 1 and 1.5 bar, then close the valves.

Why does my boiler keep turning off?

This could be due to low water pressure, a faulty thermostat, or an airlock in the system. Check the pressure and thermostat settings, and bleed the radiators if necessary.

What does error code EA on my boiler mean?

Error code EA indicates a failure to ignite. Check the gas supply, reset the boiler, and ensure there are no blockages in the flue or condensate pipe.