Contents

Contents
1 Key to symbols and safety instructions
- 1.1 Key to symbols
- 1.2 General safety instructions
- 2 Using your boiler
  - 2.1 Controls
  - 2.2 Operating the boiler
    - 2.2.1 Switching the boiler on/off
    - 2.2.2 Setting the heating temperature
    - 2.2.3 Controlling the central heating
    - 2.2.4 Frost protection
    - 2.2.5 Fault conditions
    - 2.2.6 Fault finding
- 3 Maintenance
  - 3.1 Maintaining your boiler
  - 3.2 Servicing
- 4 External filling loop (Sealed system only)
- 5 General information
  - 5.1 Fuel
  - 5.2 Boiler installation
  - 5.3 General notes
- 6 Energy saving
  - 6.1 Tips on energy saving
- 7 Guarantee
  - 7.1 Fault or breakdown
  - 7.2 Guarantee registration

Worcester External System 12/18 2013 User Instructions

Worcester External System 12/18 2013 Boiler manual cover

Pages 16

Year 2013

Language(s)

of 16

Worcester External System 12/18 2013 Boiler Specification

The Worcester External System 12/18 2013 Boiler is a high-efficiency, external oil-fired boiler designed for reliable and efficient heating. This model is specifically engineered for outdoor installation, offering an optimal solution for homes where indoor space is limited. It operates with an output range of 12 to 18 kW, making it suitable for medium-sized homes with moderate heating demands.

The boiler features a heat exchanger made from high-grade stainless steel, ensuring durability and resistance to corrosion. Its design incorporates advanced technology for improved performance, including a highly efficient burner system that reduces fuel consumption and emissions. The system is compatible with a range of controls, providing flexibility and ease of use for homeowners seeking to optimize their heating settings.

Installation is straightforward due to its compact and weatherproof casing, which protects the unit from the elements and minimizes maintenance requirements. The Worcester External System 12/18 is equipped with frost protection and an integrated condensate trap, further enhancing its reliability and longevity in various environmental conditions.

Safety is a paramount consideration, with the boiler featuring an automatic air vent, pressure relief valve, and a robust electronic control system to monitor and regulate operation. It is compliant with the latest energy efficiency standards, contributing to reduced energy bills and a smaller carbon footprint. Overall, the Worcester External System 12/18 2013 Boiler combines robust construction, advanced technology, and user-friendly features, making it an excellent choice for efficient and effective home heating.

Worcester External System 12/18 2013 Boiler F.A.Q.

How do I reset my Worcester External System 12/18 2013 Boiler?

To reset your Worcester External System 12/18 2013 Boiler, locate the reset button on the control panel. Press and hold the button for about 3 seconds until the reset light turns off. Release the button to complete the reset process.

What should I do if my boiler is not firing up?

If your boiler is not firing up, check the power supply, ensure the thermostat is set correctly, and look for any visible error codes. If the issue persists, it may require a professional inspection.

How often should I service my Worcester boiler?

It is recommended to service your Worcester boiler annually to ensure it operates efficiently and safely. Regular servicing can help prevent breakdowns and extend the boiler's lifespan.

What does the error code E9 mean on the Worcester boiler?

Error code E9 on a Worcester boiler usually indicates a problem with the heat exchanger, such as overheating. It's advisable to contact a qualified heating engineer to address this issue.

Can I use my Worcester boiler during a power outage?

No, the Worcester External System 12/18 2013 Boiler requires electricity to operate. During a power outage, the boiler will not function. Consider alternative heating solutions during such times.

How can I increase the pressure on my Worcester boiler?

To increase the pressure on your Worcester boiler, locate the filling loop and open the valves to allow water to enter the system. Monitor the pressure gauge and stop filling once the desired pressure level is reached, typically between 1 and 1.5 bar.

Why is my Worcester boiler making a banging noise?

A banging noise from your Worcester boiler could be due to a build-up of limescale or air in the system, known as "kettling". It's best to have a professional check and clean the boiler.

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

To bleed your radiators, turn off the heating system, use a radiator key to open the bleed valve, and let the trapped air escape until water starts to flow out. Close the valve tightly and repeat for all radiators.

What regular checks should I perform on my Worcester boiler?

Regular checks for your Worcester boiler include ensuring the pressure is within the recommended range, checking for leaks, listening for unusual noises, and verifying that the flue is clear.

How do I program the thermostat on my Worcester boiler?

Refer to the thermostat's user manual for specific programming instructions. Generally, you can set the desired temperature and schedule heating times using the control panel or digital interface.