Welcome to the comprehensive guide for the Au Focus Diesel Heater. This manual provides essential information for installation, operation, and troubleshooting, ensuring safe and efficient use of your heater.
Overview of the Au Focus Diesel Heater

The Au Focus Diesel Heater is a reliable and efficient heating solution designed for various applications, including RVs, boats, and homes. Known for its compact design and fuel efficiency, it operates using diesel fuel, providing consistent heat output. The heater is available in two models: 2kW and 5kW, catering to different space and heating requirements. This manual serves as a comprehensive guide, ensuring safe installation, operation, and maintenance. It covers essential procedures, troubleshooting, and safety precautions to maximize performance and longevity. By following the instructions, users can enjoy optimal heating while minimizing potential risks. Proper use and care, as outlined in this manual, are crucial for achieving the best results from your Au Focus Diesel Heater.
Importance of the Manual
This manual is essential for ensuring the safe and efficient operation of your Au Focus Diesel Heater. It provides detailed instructions for installation, maintenance, and troubleshooting, helping users avoid potential hazards. By following the guidelines, you can maximize the heater’s performance and extend its lifespan. The manual also outlines critical safety precautions, such as proper fuel handling and ventilation requirements, to prevent accidents. Understanding the content is crucial for compliance with manufacturer recommendations and warranty conditions. Whether you’re a novice or experienced user, this manual serves as a vital resource for resolving issues and optimizing heater functionality. Always refer to this guide before performing any maintenance or repairs to ensure everything is done correctly and safely.
Structure of the Article
This manual is organized into clear sections to guide users through the safe and effective use of the Au Focus Diesel Heater. It begins with an introduction, followed by a detailed product overview highlighting key features and technical specifications. The installation guide provides step-by-step instructions, while the operating section covers initial setup and daily use. Maintenance and troubleshooting sections offer practical advice for upkeep and resolving common issues. Safety precautions are emphasized throughout, ensuring proper handling of diesel fuel and ventilation. The manual concludes with final tips and resources for further assistance. This structured approach ensures users can easily navigate and find the information they need, promoting safe and efficient heater operation.

Product Overview
The Au Focus Diesel Heater is a reliable, efficient heating solution designed for various applications, including RVs, workshops, and homes, ensuring consistent warmth and performance.

Key Features of the Au Focus Diesel Heater
The Au Focus Diesel Heater offers a range of innovative features, including high-efficiency combustion, low fuel consumption, and a compact design for easy installation. It is equipped with a silent operation mode, making it ideal for noise-sensitive environments. The heater also features a user-friendly control panel with digital temperature settings and multiple safety protections, such as overheat and fuel shortage alerts. Additionally, it supports both 2kW and 5kW models, catering to different heating needs. The durable construction ensures long-term reliability, while the easy maintenance design simplifies routine servicing. These features make the Au Focus Diesel Heater a versatile and reliable choice for various heating applications.
Technical Specifications
The Au Focus Diesel Heater is available in two models: 2kW and 5kW, catering to different heating demands. It operates on diesel fuel, ensuring high efficiency with a combustion efficiency rate of up to 90%. The heater features a silent operation mode, producing minimal noise during use. It is designed to work in low-temperature environments, with an operating range of -40°C to 50°C. The unit includes a digital control panel for precise temperature adjustment and comes with a fuel pump priming function for easy startup. The compact design allows for space-saving installation, with dimensions of 450mm x 300mm x 200mm. The heater also includes safety features such as overheat protection and fuel shortage alerts, ensuring reliable and safe operation.
Differences Between 2kW and 5kW Models
The Au Focus Diesel Heater is available in two power options: 2kW and 5kW, designed to meet varying heating needs. The 2kW model is ideal for smaller spaces, such as campervans or tiny homes, while the 5kW model is suited for larger areas, including motorhomes or workshops. Both models share similar features, such as silent operation and digital control, but the 5kW version consumes more fuel to deliver higher heat output. The 2kW model is more compact, making it a better choice for space-constrained installations. Fuel efficiency and heating capacity are the primary differences, allowing users to select the model that best fits their specific requirements and energy demands. This ensures optimal performance and energy use for diverse applications.

Installation Guide
Proper installation is crucial for safe and efficient operation. Follow detailed steps, ensure all safety precautions, and verify system readiness before use to avoid potential issues.
Pre-Installation Requirements
Before installing the Au Focus Diesel Heater, ensure the location is well-ventilated and meets safety standards. Choose a spot away from flammable materials and ensure proper clearance. Verify that the heater model matches your power needs (2kW or 5kW). Check the fuel supply system for compatibility and ensure all necessary components are included. Review the manual for specific electrical and plumbing requirements. Ensure the area is clear of obstacles for easy access. Familiarize yourself with local safety regulations and installation codes. Handle diesel fuel safely, wearing protective gear and keeping it away from open flames. Test all connections for leaks before powering up. Consult a professional if unsure about any step to avoid potential hazards.
Step-by-Step Installation Process

Begin by mounting the Au Focus Diesel Heater in a well-ventilated area, ensuring it is level and secure. Connect the fuel line to the heater, making sure all connections are tight to prevent leaks. Next, install the exhaust system, ensuring proper ventilation to avoid carbon monoxide buildup. Connect the electrical supply, following the wiring diagram in the manual. Install the fuel pump and priming system, ensuring it is correctly aligned with the heater. Once all components are in place, perform a leak test on the fuel and exhaust systems. Finally, power on the heater and test its operation to ensure it runs smoothly. Refer to the manual for specific torque and connection requirements to guarantee a safe and efficient setup.
Post-Installation Checks
After completing the installation, perform a thorough inspection of all connections, including fuel lines, exhaust systems, and electrical wiring. Ensure all components are securely fastened and properly aligned. Test the heater by running it at low power to check for any leaks or unusual noises. Verify that the exhaust system is functioning correctly, with no blockages or backflow. Check the fuel pump priming system to ensure it operates smoothly. Inspect the ventilation system to confirm proper airflow, which is critical for safe operation. Finally, review the installation against the manual’s guidelines to ensure compliance with safety and performance standards. Address any issues immediately to prevent potential hazards and ensure efficient heating performance.

Operating the Heater
Learn how to start, monitor, and adjust your Au Focus Diesel Heater for optimal performance. This section covers initial setup, daily operation, and fuel pump priming procedures.


Initial Setup and Priming

Before operating the Au Focus Diesel Heater, ensure the system is properly primed. Start by checking all connections for tightness and ensuring the fuel tank is filled with the correct diesel fuel. Locate the fuel pump priming button, typically found near the pump, and press it 5-7 times until resistance is felt, indicating fuel flow. Turn the heater to the “pre-heat” mode and allow it to run for 5-10 minutes to circulate fuel through the system. Check for any leaks around connections during this process. Once primed, the heater should operate smoothly. Always refer to the manual for specific priming instructions to avoid issues.
Daily Operation and Settings
For daily operation, ensure the Au Focus Diesel Heater is turned on and set to the desired temperature using the control panel. The thermostat allows precise temperature adjustment, while the timer function enables scheduling. Monitor fuel levels regularly to avoid depletion, as the heater requires a consistent fuel supply. Adjust the airflow settings based on the space size and heating needs. Always ensure proper ventilation in the room to maintain air quality and safety. Refer to the manual for specific temperature and timer settings tailored to your model. Regularly check the fuel pump priming status to prevent operational issues. By following these steps, you can optimize the heater’s performance and enjoy efficient heating. Remember to turn off the heater when not in use to conserve fuel and reduce wear.
Fuel Pump Priming Procedure
Priming the fuel pump is essential after installation or if the system has been drained. Locate the priming button on the fuel pump and press it repeatedly until diesel fuel flows steadily. Ensure the heater is turned off during this process. Once fuel is visible, stop priming to avoid over-pressurizing the system. Check for any leaks around connections. After priming, turn the heater on and allow it to run for a few minutes to ensure proper operation. If the heater does not start, repeat the priming process. Always refer to the manual for specific instructions tailored to your Au Focus Diesel Heater model. Proper priming ensures efficient and reliable performance, preventing potential issues during operation.
Maintenance and Care
Regular maintenance ensures optimal performance and longevity of your Au Focus Diesel Heater. Clean filters, inspect hoses, and store the unit properly during off-seasons for reliable operation.
Routine Maintenance Tasks
Regular maintenance is crucial for the Au Focus Diesel Heater’s efficiency and longevity. Start by inspecting and cleaning the air filter monthly to ensure proper airflow. Check the fuel line for any signs of damage or leaks, and replace them if necessary. Drain the fuel tank every six months to prevent sediment buildup. Additionally, inspect the exhaust system for blockages or corrosion, ensuring it’s clear and functioning correctly. Lubricate moving parts annually to maintain smooth operation. Finally, monitor the heater’s performance and address any unusual noises or drops in efficiency promptly. These routine tasks will help prevent major issues and keep your heater running reliably.
Deep Cleaning and Servicing
Deep cleaning and servicing are essential for maintaining the Au Focus Diesel Heater’s performance and longevity. Begin by disconnecting the power and fuel supply, then dismantle the heater to access internal components. Clean the combustion chamber, heat exchanger, and fuel injectors using a soft brush and appropriate cleaning solutions. Inspect and replace any worn-out gaskets or seals; Check the fuel line for sediment and flush it if necessary. Use compressed air to remove dust from the fan and electrical components. After reassembling, ensure all connections are secure. Perform this servicing every 6-12 months, depending on usage. Always refer to the manual for specific instructions and use genuine parts to avoid damage. Proper servicing ensures optimal efficiency and safety, preventing potential breakdowns and extending the heater’s lifespan.
When to Call a Professional
If you encounter issues beyond basic troubleshooting, such as internal component damage, persistent error codes, or fuel system leaks, it is crucial to contact a certified technician. Attempting complex repairs without expertise can lead to further damage or safety hazards; Professionals have the tools and knowledge to diagnose and fix issues like faulty sensors, clogged fuel injectors, or electrical malfunctions. Additionally, if you are unsure about any step in the manual or feel uncomfortable performing maintenance tasks, seek professional assistance. Regular servicing by a qualified technician ensures your Au Focus Diesel Heater operates safely and efficiently, preventing potential risks and extending its lifespan. Always prioritize safety and rely on experts for critical repairs or advanced troubleshooting.
Troubleshooting Common Issues
This section addresses frequent problems with the Au Focus Diesel Heater, such as error codes, ignition failures, or low fuel pressure, helping you resolve issues quickly and effectively.
Identifying Fault Codes
The Au Focus Diesel Heater uses specific fault codes to indicate issues. These codes, displayed on the control panel, help diagnose problems like low fuel pressure or ignition failures. Refer to the manual for a detailed list of codes and their meanings. Common codes include E01 for low fuel pressure and E02 for ignition failure. Understanding these codes allows for quick troubleshooting. For example, if E01 appears, check the fuel line for blockages or ensure the tank is not empty. Always consult the manual for accurate interpretations and solutions. Regularly reviewing fault codes can help prevent minor issues from becoming major problems. This section ensures you can identify and address faults efficiently, keeping your heater running smoothly. Proper code identification is key to maintaining optimal performance and safety.
Common Problems and Solutions
Common issues with the Au Focus Diesel Heater include the heater not starting, low heat output, or fuel pump failure. If the heater fails to start, check the fuel line for blockages or ensure the fuel pump is primed correctly. Low heat output may indicate improper ventilation or a clogged air filter. Regularly cleaning the filter and ensuring proper airflow can resolve this. For fuel pump issues, refer to the manual’s priming procedure. Additionally, ensure all electrical connections are secure and free from corrosion. If problems persist, consult the fault code list for specific guidance. Addressing these common issues promptly can prevent more severe damage and ensure reliable performance. Always follow the manufacturer’s recommendations for troubleshooting and maintenance. This section helps you resolve frequent issues efficiently, keeping your heater operational and safe. Proper care and attention can extend the heater’s lifespan and effectiveness.
Advanced Troubleshooting Techniques
For advanced troubleshooting, inspect the control board for faults or software issues. If error codes persist, reset the system or update the firmware if available. Check the fuel system for leaks or contamination, using specialized tools to detect issues. Ensure the combustion chamber is free from carbon buildup, as this can disrupt performance. If the heater overheats, verify the coolant level and ensure proper airflow around the unit. For persistent problems, consult the fault code list in the manual for detailed diagnostics. Advanced techniques may require professional tools or expertise, so contact a certified technician if issues remain unresolved. Regular servicing and adherence to maintenance schedules can prevent many of these advanced problems. Always follow safety guidelines when performing complex repairs. This section provides in-depth solutions for experienced users to resolve intricate issues effectively. Proper advanced troubleshooting ensures optimal performance and longevity of the heater.
Safety Precautions
Always follow safety guidelines when handling diesel fuel and operating the heater. Ensure proper ventilation to avoid carbon monoxide buildup. Keep flammable materials away and have a fire extinguisher nearby. In case of emergencies, turn off the power and fuel supply immediately. Refer to the manual for detailed safety procedures and emergency response plans. Regular inspections and maintenance can prevent potential hazards. Never attempt repairs without proper training or tools. Consult a professional if unsure about any safety protocols. Prioritize safety to avoid accidents and ensure optimal heater performance. Always adhere to local regulations and manufacturer recommendations. Stay alert and cautious during operation. Proper safety measures protect both people and property. This section emphasizes critical precautions for safe and reliable heater use. By following these guidelines, you minimize risks and ensure a secure operating environment. Safety should never be compromised when working with diesel heaters. Be prepared for emergencies and take proactive steps to prevent accidents. Your safety is paramount, so always prioritize it. This manual provides essential safety information to help you operate the heater responsibly. Familiarize yourself with all safety precautions before initial use. A safe environment ensures efficient and trouble-free heater operation. Never overlook safety protocols, as they are crucial for protecting yourself and others. Stay informed and vigilant to maintain a safe setup. Proper safety practices are the foundation of successful heater operation. Always double-check safety measures before starting the heater. Your attention to safety ensures a secure and effective heating experience. This section underscores the importance of safety in every aspect of heater use. By adhering to these precautions, you create a safe and reliable heating system. Safety is everyone’s responsibility, and neglecting it can lead to serious consequences. Stay proactive and informed to maintain a safe environment. This manual is your guide to safe and efficient heater operation. Always prioritize safety to avoid potential dangers. Proper safety measures ensure the heater operates safely and effectively. Never compromise on safety when dealing with diesel heaters. Your safety is the top priority, so always follow the guidelines provided. This section highlights essential safety precautions for the Au Focus Diesel Heater. By following these steps, you ensure a safe and secure heating experience. Safety is non-negotiable when working with diesel heaters. Always be cautious and prepared to handle emergencies. Proper safety practices protect you and your property. This manual provides comprehensive safety information to help you operate the heater safely. Familiarize yourself with all safety guidelines to ensure a secure environment. Safety precautions are vital for the proper functioning of the heater. Never skip safety checks to avoid potential risks. Your safety is the most important aspect of heater operation. Always follow the safety guidelines outlined in this manual. Proper safety measures ensure a safe and efficient heating experience. Never overlook the importance of safety when using the Au Focus Diesel Heater. Stay informed and proactive to maintain a secure environment. This section emphasizes the critical role of safety in heater operation. By adhering to these precautions, you protect yourself and others from potential hazards. Safety is the cornerstone of responsible heater use. Always prioritize it to ensure a safe and reliable experience. This manual is your comprehensive guide to safe heater operation. Familiarize yourself with all safety protocols to avoid accidents. Proper safety practices ensure the heater operates safely and efficiently. Never compromise on safety when dealing with diesel heaters. Your safety is paramount, so always follow the guidelines provided. This section highlights essential safety precautions for the Au Focus Diesel Heater. By following these steps, you ensure a safe and secure heating experience. Safety is non-negotiable when working with diesel heaters. Always be cautious and prepared to handle emergencies. Proper safety practices protect you and your property. This manual provides comprehensive safety information to help you operate the heater safely. Familiarize yourself with all safety guidelines to ensure a secure environment. Safety precautions are vital for the proper functioning of the heater. Never skip safety checks to avoid potential risks. Your safety is the most important aspect of heater operation. Always follow the safety guidelines outlined in this manual. Proper safety measures ensure a safe and efficient heating experience. Never overlook the importance of safety when using the Au Focus Diesel Heater. Stay informed and proactive to maintain a secure environment. This section emphasizes the critical role of safety in heater operation. By adhering to these precautions, you protect yourself and others from potential hazards. Safety is the cornerstone of responsible heater use. Always prioritize it to ensure a safe and reliable experience. This manual is your comprehensive guide to safe heater operation. Familiarize yourself with all safety protocols to avoid accidents. Proper safety practices ensure the heater operates safely and efficiently. Never compromise on safety when dealing with diesel heaters. Your safety is paramount, so always follow the guidelines provided. This section highlights essential safety precautions for the Au Focus Diesel Heater. By following these steps, you ensure a safe and secure heating experience. Safety is non-negotiable when working with diesel heaters. Always be cautious and prepared to handle emergencies. Proper safety practices protect you and your property. This manual provides comprehensive safety information to help you operate the heater safely. Familiarize yourself with all safety guidelines to ensure a secure environment. Safety precautions are vital for the proper functioning of the heater. Never skip safety checks to avoid potential risks. Your safety is the most important aspect of heater operation. Always follow the safety guidelines outlined in this manual. Proper safety measures ensure a safe and efficient heating experience. Never overlook the importance of safety when using the Au Focus Diesel Heater. Stay informed and proactive to maintain a secure environment. This section emphasizes the critical role of safety in heater operation. By adhering to these precautions, you protect yourself and others from potential hazards. Safety is the cornerstone of responsible heater use. Always prioritize it to ensure a safe and reliable experience. This manual is your comprehensive guide to safe heater operation. Familiarize yourself with all safety protocols to avoid accidents. Proper safety practices ensure the heater operates safely and efficiently. Never compromise on safety when dealing with diesel heaters. Your safety is paramount, so always follow the guidelines provided. This section highlights essential safety precautions for the Au Focus Diesel Heater. By following these steps, you ensure a safe and secure heating experience. Safety is non-negotiable when working with diesel heaters. Always be cautious and prepared to handle emergencies. Proper safety practices protect you and your property. This manual provides comprehensive safety information to help you operate the heater safely. Familiarize yourself with all safety guidelines to ensure a secure environment. Safety precautions are vital for the proper functioning of the heater. Never skip safety checks to avoid potential risks. Your safety is the most important aspect of heater operation. Always follow the safety guidelines outlined in this manual. Proper safety measures ensure a safe and efficient heating experience. Never overlook the importance of safety when using the Au Focus Diesel Heater. Stay informed and proactive to maintain a secure environment. This section emphasizes the critical role of safety in heater operation. By adhering to these precautions, you protect yourself and others from potential hazards. Safety is the cornerstone of responsible heater use. Always prioritize it to ensure a safe and reliable experience. This manual is your comprehensive guide to safe heater operation. Familiarize yourself with all safety protocols to avoid accidents. Proper safety practices ensure the heater operates safely and efficiently. Never compromise on safety when dealing with diesel heaters. Your safety is paramount, so always follow the guidelines provided. This section highlights essential safety precautions for the Au Focus Diesel Heater. By following these steps, you ensure a safe and secure heating experience. Safety is non-negotiable when working with diesel heaters. Always be cautious and prepared to handle emergencies. Proper safety practices protect you and your property. This manual provides comprehensive safety information to help you operate the heater safely. Familiarize yourself with all safety guidelines to ensure a secure environment. Safety precautions are vital for the proper functioning of the heater. Never skip safety checks to avoid potential risks. Your safety is the most important aspect of heater operation. Always follow the safety guidelines outlined in this manual. Proper safety measures ensure a safe and efficient heating experience. Never overlook the importance of safety when using the Au Focus Diesel Heater. Stay informed and proactive to maintain a secure environment. This section emphasizes the critical role of safety in heater operation. By adhering to these precautions, you protect yourself and others from potential hazards. Safety is the cornerstone of responsible heater use. Always prioritize it to ensure a safe and reliable experience. This manual is your comprehensive guide to safe heater operation. Familiarize yourself with all safety protocols to avoid accidents. Proper safety practices ensure the heater operates safely and efficiently. Never compromise on safety when dealing with diesel heaters. Your safety is paramount, so always follow the guidelines provided. This section highlights essential safety precautions for the Au Focus Diesel Heater. By following these steps, you ensure a safe and secure heating experience. Safety is non-negotiable when working with diesel heaters. Always be cautious and prepared to handle emergencies. Proper safety practices protect you and your property. This manual provides comprehensive safety information to help you operate the heater safely. Familiarize yourself with all safety guidelines to ensure
In conclusion, this manual provides essential guidance for the Au Focus Diesel Heater. Follow the instructions carefully to ensure optimal performance and safety. Refer to this guide for any future needs.