Contents

General checks before calling a Service engineer
- User instructions & customer care guide
- Abbreviations
- Dedicated to heating comfort
- Contents
- 1 Introduction
  - 1.1 Explanation of symbols
    - Warning symbols
    - Important information
    - Additional symbols
  - 1.2 Safety precautions
  - 2 General Information
    - 2.1 Energy efficiency
    - 2.2 Servicing
    - 2.3 User caution
  - 3 Using your boiler
    - 3.1 Controls
      - To access controls:
    - 3.2 Operating the boiler
      - 3.2.1 Switching the boiler on/off
      - 3.2.2 Setting central heating temperature
      - 3.2.3 Controlling the central heating
        
        Turning the central heating off during the summer
      - 3.2.4 Setting the hot water temperature
      - 3.2.5 Domestic hot water (DHW)
      - 3.2.6 Eco mode
        
        Domestic hot water eco mode
        
        Selecting eco mode
        
        Exit eco mode
      - 3.2.7 Frost protection
      - 3.2.8 System pressure
        
        Filling loop
  - 4 Maintenance
    - 4.1 Troubleshooting
      - Boiler alert state
      - Boiler reset
      - Boiler stops with no fault code
    - 4.2 Fault finding
    - 4.3 Maintaining your boiler
      - Maintenance tips
      - Use in hard water areas
    - 4.4 Servicing
  - 5 General information
    - 5.1 Important information
      - Fuel
      - Boiler location
      - Installation & servicing clearances
    - 5.2 General notes
      - Central heating systems
      - Condensate drain
      - Clearances - Service
      - Room thermostat
      - Thermostatic radiator valves
  - 6 Energy saving
    - 6.1 Tips on energy saving
      - Room thermostats
      - New control systems
      - Radiators
      - Heating economically
      - Roof insulation
      - Window frames
      - Curtains
      - Draughts
  - 7 Guarantee
    - 7.1 Fault or breakdown
      - Boiler data label
    - 7.2 Guarantee registration
    - 7.3 Your guarantee
      - Guarantee registration

Worcester Greenstar Heatslave 2 External 12/18 2014 User Instructions

Worcester Greenstar Heatslave 2 External 12/18 2014 Boiler manual cover

Pages 16

Year 2014

Language(s)

of 16

Worcester Greenstar Heatslave 2 External 12/18 2014 Boiler Specification

The Worcester Greenstar Heatslave 2 External 12/18 Boiler, introduced in 2014, is a robust and efficient external oil-fired combi boiler designed for residential use. It integrates cutting-edge technology with practical design to provide both central heating and domestic hot water. The unit boasts an output rating ranging from 12 to 18 kW, making it suitable for medium-sized homes with moderate heating and hot water demands. Featuring a sleek and weatherproof exterior casing, it is engineered to withstand outdoor conditions, thereby saving valuable indoor space.

The boiler incorporates a highly efficient heat exchanger that optimizes fuel usage, enhancing energy efficiency and reducing operating costs. It is compliant with modern emission standards, contributing to eco-friendly operations. The Greenstar Heatslave 2 External is equipped with user-friendly controls, allowing for easy temperature adjustments and system monitoring. It also supports advanced features such as programmable heating schedules and compatibility with smart thermostats, offering enhanced convenience and energy savings.

Installation is straightforward, facilitated by its pre-plumbing capabilities and flexible flue options. The unit includes built-in frost protection, ensuring reliable performance even in colder climates. Maintenance is simplified with accessible components and a clear diagnostic display, aiding in quick troubleshooting and service. The Worcester Greenstar Heatslave 2 External 12/18 is a reliable choice for homeowners seeking a durable, efficient, and space-saving heating solution. Its combination of performance, ease of use, and environmental considerations makes it a leading option within its category.

Worcester Greenstar Heatslave 2 External 12/18 2014 Boiler F.A.Q.

How do I reset my Worcester Greenstar Heatslave 2 External 12/18 Boiler?

To reset your boiler, locate the reset button on the control panel. Press and hold it for 3-5 seconds until the reset light turns off, indicating the reset process is complete.

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

First, check if there is a power supply to the boiler. Ensure the thermostat is set correctly and the boiler pressure is within the recommended range. If the issue persists, consult a qualified technician.

How often should I service my Worcester Greenstar Heatslave 2 External 12/18 Boiler?

It is recommended to service your boiler annually to ensure its efficiency and longevity. Regular servicing can help identify potential issues before they become major problems.

What does the error code on my boiler mean?

Refer to the user manual for specific error codes. Common codes can indicate issues like low pressure, ignition failure, or sensor faults. If you're unsure, consult a professional technician.

How can I increase the water pressure in my boiler?

To increase the water pressure, locate the filling loop on your boiler and open the valves slowly until the pressure gauge reaches the recommended level of 1-1.5 bar. Close the valves once the desired pressure is achieved.

What maintenance tasks can I perform myself on my boiler?

Homeowners can regularly check the boiler pressure, bleed radiators, and ensure external vents are clear of obstructions. For more complex tasks, it's advisable to hire a qualified technician.

Why is my boiler making unusual noises?

Unusual noises can be caused by air in the system, low pressure, or limescale buildup. Bleeding radiators or checking the pressure can help. Persistent noises should be investigated by a professional.

What should I do if my boiler is leaking water?

Turn off the water supply and power to the boiler, and call a qualified technician. Leaks can result from faulty seals, corrosion, or issues with the pressure relief valve.

How do I adjust the temperature settings on my Worcester Greenstar Heatslave 2 Boiler?

Use the control panel to adjust the desired temperature settings for both heating and hot water. Refer to the user manual for detailed instructions on navigating the control interface.

What could cause my boiler to frequently switch on and off?

Frequent cycling may be due to incorrect thermostat settings, air in the system, or a faulty pump. Checking these components can help diagnose the issue, but a professional inspection may be necessary.