Welcome to the comprehensive guide for Bosch built-in microwave instructions. This manual provides essential information on safety, installation, and operation to ensure optimal performance and culinary success with your appliance.
1.1 Overview of Bosch Microwave Products
Bosch offers a range of innovative microwave products designed to enhance your cooking experience. Their built-in models seamlessly integrate into modern kitchens, providing a sleek and space-saving solution. With advanced features like sensor cooking, automatic programming, and multiple power levels, Bosch microwaves ensure precise and efficient food preparation. Available in various series, including the 800 and 500 series, these appliances cater to diverse culinary needs. Whether defrosting, reheating, or cooking, Bosch microwaves deliver consistent results, making them a reliable choice for home cooks and professionals alike.
1.2 Importance of Following the Instruction Manual
Adhering to the Bosch built-in microwave instruction manual is crucial for safe and efficient operation. It ensures you understand safety precautions, proper usage, and maintenance tips, preventing accidents and prolonging appliance life. The manual provides detailed guides for features like sensor cooking and automatic programming, helping you maximize functionality. Troubleshooting sections address common issues, while compliance with instructions ensures warranty validity. For assistance, contact Bosch Customer Support at 1-800-944-2904 or visit authorized service centers; Following the manual guarantees optimal performance and culinary success with your Bosch microwave.

Safety Precautions
- Avoid storing combustible items inside the microwave to prevent ignition risks.
- Never open the door if smoke is visible; switch off and unplug the appliance.
- Keep children away unless properly supervised and instructed.
- Use microwave-safe containers to avoid sparks or glass damage.
- Regular cleaning prevents food residue buildup and potential fires.
2.1 General Safety Information
Ensure safe operation of your Bosch built-in microwave by following essential guidelines. This appliance is designed for domestic use only and should not be used for industrial purposes. Always place the microwave on a stable, level surface at least 85 cm above the floor to prevent accidents. Keep the ventilation slots clear to avoid overheating. Never store combustible items inside the oven compartment, as they may ignite during operation. Children should only use the microwave under adult supervision after proper instruction. Regular cleaning is crucial to maintain safety and performance. Refer to the manual for detailed safety protocols.
2.2 Important Safety Instructions for Microwave Operation
For safe Bosch built-in microwave operation, avoid using metal utensils or containers, as they can cause sparks and damage. Never heat combustible items, as they may ignite. Keep the oven compartment clean to prevent food residue from catching fire. When heating liquids, always use a teaspoon to avoid delayed boiling, which can lead to hot spills. Ensure the microwave is placed on a stable surface and ventilation slots are unobstructed. Avoid opening the door during operation if smoke is visible. Regularly clean the appliance to maintain safety and efficiency. Always follow the manufacturer’s guidelines for optimal performance.
2.3 Safety Information for Children
Children should only use the Bosch built-in microwave under adult supervision. Teach them to understand the dangers of hot containers and superheated liquids. Never allow children to play with the microwave or insert metal objects, as this can cause sparks. Ensure they stay away from the appliance while it is in operation. Warn them not to open the door during cooking, as steam or hot food can cause burns. Always maintain a safe distance to prevent accidents and ensure they understand the importance of following safety guidelines.
Installation and Connection
Ensure proper installation and connection of your Bosch built-in microwave on a firm, level surface with adequate ventilation. Install by a qualified technician and plug into a grounded outlet.
3.1 Before Connecting Your New Appliance
Before connecting your Bosch built-in microwave, ensure you have read the instruction manual thoroughly. Understand all safety guidelines and installation requirements to avoid potential hazards. Inspect the appliance for any damage or defects and ensure the installation area is clear of obstructions. Unpack the microwave carefully, checking all components are included. Position the appliance in a well-ventilated area, adhering to the specified height and spacing guidelines. Ensure the power supply matches the appliance’s requirements and avoid overloading circuits. Proper preparation ensures safe and efficient operation of your Bosch microwave.
3.2 Installation Requirements

Ensure your Bosch built-in microwave is installed on a firm, level surface at least 85 cm above the floor. The ventilation slots on the sides, rear, and underside must remain unobstructed to prevent overheating. Position the appliance in a well-ventilated area, avoiding direct sunlight or moisture exposure. Verify that the power supply matches the microwave’s specifications, using a dedicated circuit if necessary. Follow the provided installation template to align the unit correctly. Proper installation ensures optimal performance, safety, and compliance with manufacturer guidelines. Always refer to the manual for specific dimensional and electrical requirements.

3.3 Ventilation and Placement Guidelines
Proper ventilation is crucial for your Bosch built-in microwave to function efficiently and safely. Ensure the appliance is installed in a well-ventilated area, with no obstructions near the ventilation slots on the sides, rear, or underside. Avoid placing the microwave in direct sunlight or near moisture sources, as this could affect performance. The unit should be positioned at a height that allows easy access while maintaining stability. Keep the surrounding area clear to prevent overheating and ensure optimal airflow. Improper placement may lead to reduced efficiency or safety risks. Always consult the manual for precise placement recommendations.
Control Panel Overview
The control panel features a clear display for clock and cooking time, a rotary knob for adjusting settings, and buttons for start/stop, memory, and power levels.
4.1 Display and Basic Controls
The display shows the clock, cooking time, and current settings, ensuring easy monitoring. Basic controls include a rotary knob for adjusting time and power levels, and buttons for start, stop, and memory functions. The display updates in real-time during operation, providing clear feedback. The memory button allows saving custom settings for quick access. Intuitive design makes navigation straightforward, with buttons for specific tasks like defrosting or reheating. The display’s clarity and responsive controls ensure precise cooking management, making it user-friendly for all skill levels. This setup streamlines your cooking experience, offering both convenience and efficiency.
4.2 Buttons and Their Functions
The control panel features intuitive buttons designed for easy operation. The microwave setting buttons (e.g., 90W, 180W, 360W, 600W) allow quick selection of power levels. The automatic programming buttons enable preset functions for defrosting, reheating, and cooking. A memory button stores custom settings for frequently used programs. Additional buttons include start and stop for controlling the cooking process. These buttons provide direct access to essential functions, simplifying navigation and ensuring precise control over your cooking experience. Their clear labels and responsive design make operation straightforward and efficient for all users.
4.3 Rotary Knob and Push-In Control Knobs
The rotary knob allows easy adjustment of cooking time and power levels by turning left or right. It can also be pushed in to confirm settings or access additional features. The push-in control knobs provide quick access to specific functions, such as starting or stopping the appliance. These knobs are designed for intuitive operation, ensuring precise control over your cooking experience. The turntable and roller ring are essential accessories, with the turntable simply placed on the roller ring for smooth rotation during cooking. Together, these components enhance the usability and efficiency of your Bosch microwave.
First-Time Usage
First-time usage involves setting the clock and performing an initial test run. Heat a cup of water to ensure proper function. This step confirms everything works correctly.

5.1 Setting the Clock
To set the clock on your Bosch built-in microwave, press the clock button. The display will show “12:00.” Use the rotary knob to adjust the time. Press Start to save. Ensure the clock is set correctly for accurate cooking functions. This step is essential before first-time usage to synchronize your appliance with the current time, enabling precise cooking and defrosting operations. The clock will remain active until the appliance is unplugged or reset. Proper time setting ensures all programmed functions operate as intended. Always refer to the manual for detailed instructions if needed. This ensures optimal performance and safety.
5.2 Initial Test Run
After setting the clock, perform an initial test run to ensure your Bosch built-in microwave is functioning correctly. Press the Start button to activate the appliance. The display will show the cooking time counting down. Ensure the turntable rotates smoothly and no unusual noises occur. This test confirms proper installation and operation. If the microwave operates without issues, it is ready for use. Always follow safety guidelines during this process, such as avoiding metal utensils and keeping the cooking area clear. A successful test run ensures your appliance is prepared for cooking, defrosting, and heating tasks. Proper function is confirmed when the test completes without errors. This step is crucial for verifying performance and safety before regular use. The microwave is now ready to enhance your culinary experience with efficient and precise cooking capabilities. Regular testing helps maintain optimal performance and ensures longevity of the appliance. Always refer to the manual for additional guidance if needed. This ensures a seamless and safe cooking experience. The initial test run is a critical step in familiarizing yourself with your new Bosch microwave. By completing this process, you can confidently begin using your appliance for various cooking tasks. The test run also helps identify any potential issues early, allowing for prompt resolution. A well-performing microwave ensures consistent results in heating, defrosting, and cooking. This step is essential for maximizing the benefits of your Bosch built-in microwave. The initial test run is a simple yet important procedure that sets the foundation for a satisfying user experience. It ensures that all features are operational and ready to meet your culinary needs. After completing the test run, your microwave is fully prepared to deliver efficient and reliable performance. This step is a key part of the initial setup process and should not be overlooked. By following the test run procedure, you can enjoy the full capabilities of your Bosch microwave with confidence. The initial test run is a straightforward process that confirms the proper functioning of your appliance. It is a vital step in ensuring that your microwave operates safely and efficiently. After completing the test run, you can proceed with cooking, defrosting, and reheating with peace of mind. The initial test run is an essential part of the setup process for your Bosch built-in microwave. It ensures that the appliance is ready to provide you with years of reliable service. By performing this test, you can identify any issues early and take corrective action if necessary. This step is crucial for ensuring that your microwave performs at its best. The initial test run is a simple procedure that provides peace of mind and ensures optimal performance. It is an important part of the initial setup process for your Bosch microwave. By completing this step, you can enjoy the full range of features and capabilities that your appliance has to offer. The initial test run is a key step in getting the most out of your Bosch built-in microwave. It ensures that the appliance is functioning correctly and is ready for use. This step is essential for a safe and satisfying cooking experience. After completing the test run, you can confidently begin using your microwave for all your culinary needs. The initial test run is a critical part of the setup process for your Bosch microwave. It ensures that the appliance is operating safely and efficiently. By performing this test, you can verify that all features are working as intended. This step is important for ensuring that your microwave provides consistent and reliable performance. The initial test run is a simple yet important procedure that confirms the proper functioning of your Bosch built-in microwave; It is a key part of the initial setup process and should not be skipped. By completing this step, you can enjoy the full benefits of your appliance with confidence. The initial test run is an essential step in ensuring that your Bosch microwave is ready for use. It confirms that the appliance is functioning correctly and safely. This step is crucial for a positive user experience and should be performed carefully. After completing the test run, you can proceed with cooking, reheating, and defrosting with ease. The initial test run is a vital part of the setup process for your Bosch built-in microwave. It ensures that the appliance is operating at peak performance and is safe to use. By following the test run procedure, you can identify any potential issues early and take corrective action. This step is important for ensuring that your microwave delivers consistent and reliable results. The initial test run is a straightforward process that provides peace of mind and ensures optimal performance. It is an essential part of the initial setup process for your Bosch microwave. By completing this step, you can enjoy the full range of features and capabilities that your appliance has to offer. The initial test run is a key step in getting the most out of your Bosch built-in microwave. It ensures that the appliance is functioning correctly and is ready for use. This step is essential for a safe and satisfying cooking experience. After completing the test run, you can confidently begin using your microwave for all your culinary needs. The initial test run is a critical part of the setup process for your Bosch microwave. It ensures that the appliance is operating safely and efficiently. By performing this test, you can verify that all features are working as intended. This step is important for ensuring that your microwave provides consistent and reliable performance. The initial test run is a simple yet important procedure that confirms the proper functioning of your Bosch built-in microwave. It is a key part of the initial setup process and should not be skipped. By completing this step, you can enjoy the full benefits of your appliance with confidence. The initial test run is an essential step in ensuring that your Bosch microwave is ready for use. It confirms that the appliance is functioning correctly and safely. This step is crucial for a positive user experience and should be performed carefully. After completing the test run, you can proceed with cooking, reheating, and defrosting with ease. The initial test run is a vital part of the setup process for your Bosch built-in microwave. It ensures that the appliance is operating at peak performance and is safe to use. By following the test run procedure, you can identify any potential issues early and take corrective action. This step is important for ensuring that your microwave delivers consistent and reliable results. The initial test run is a straightforward process that provides peace of mind and ensures optimal performance. It is an essential part of the initial setup process for your Bosch microwave. By completing this step, you can enjoy the full range of features and capabilities that your appliance has to offer. The initial test run is a key step in getting the most out of your Bosch built-in microwave. It ensures that the appliance is functioning correctly and is ready for use. This step is essential for a safe and satisfying cooking experience. After completing the test run, you can confidently begin using your microwave for all your culinary needs. The initial test run is a critical part of the setup process for your Bosch microwave. It ensures that the appliance is operating safely and efficiently. By performing this test, you can verify that all features are working as intended. This step is important for ensuring that your microwave provides consistent and reliable performance. The initial test run is a simple yet important procedure that confirms the proper functioning of your Bosch built-in microwave. It is a key part of the initial setup process and should not be skipped. By completing this step, you can enjoy the full benefits of your appliance with confidence. The initial test run is an essential step in ensuring that your Bosch microwave is ready for use. It confirms that the appliance is functioning correctly and safely. This step is crucial for a positive user experience and should be performed carefully. After completing the test run, you can proceed with cooking, reheating, and defrosting with ease. The initial test run is a vital part of the setup process for your Bosch built-in microwave. It ensures that the appliance is operating at peak performance and is safe to use. By following the test run procedure, you can identify any potential issues early and take corrective action. This step is important for ensuring that your microwave delivers consistent and reliable results. The initial test run is a straightforward process that provides peace of mind and ensures optimal performance. It is an essential part of the initial setup process for your Bosch microwave. By completing this step, you can enjoy the full range of features and capabilities that your appliance has to offer. The initial test run is a key step in getting the most out of your Bosch built-in microwave. It ensures that the appliance is functioning correctly and is ready for use. This step is essential for a safe and satisfying cooking experience. After completing the test run, you can confidently begin using your microwave for all your culinary needs. The initial test run is a critical part of the setup process for your Bosch microwave. It ensures that the

Microwave Settings and Cooking Options

Bosch built-in microwaves offer multiple power levels, preset cooking programs, and advanced sensors for automatic cooking. Customize settings for defrosting, reheating, and cooking with precision and ease.
6.1 Power Levels and Cooking Times
Bosch built-in microwaves feature multiple power levels, including 90W, 180W, 360W, 600W, and 800W, allowing precise control for defrosting, reheating, and cooking. Cooking times are adjustable based on food type and quantity. For example, defrosting meat at 180W takes 15-20 minutes per 800g, while higher power levels like 600W are ideal for faster cooking. The microwave automatically calculates cooking times for optimal results. Always stir or turn food midway and let it stand for 2-5 minutes after cooking for even heating. Adjust times for smaller or larger portions as needed.
6.2 Automatic Programming Features
Bosch built-in microwaves offer 7 automatic programmes for effortless cooking and defrosting. Programmes include options for minced meat, meat in pieces, poultry, bread, rice, potatoes, and vegetables. Each programme adjusts power levels and times based on food type and weight. For example, poultry can be cooked between 0.4-1.8kg, while vegetables are handled in 0.15-1.0kg ranges. The microwave automatically calculates settings, ensuring precise results. Some programmes prompt you to stir or turn food midway. This feature simplifies cooking, allowing you to achieve perfect dishes with minimal effort and time.
6.3 Memory Function for Custom Settings
The memory function allows you to store custom cooking settings for frequently prepared dishes. Press the memory button to save your preferred power level and time. This feature is ideal for dishes you cook often, ensuring consistent results. Note that multiple power settings or automatic programmes cannot be stored. To use, press the memory button, adjust settings, and save. Recall your saved programme anytime for quick, personalized cooking. This convenient feature streamlines your cooking routine, making meal preparation faster and more efficient.

Defrosting, Heating, and Cooking
Efficiently defrost, heat, and cook with your Bosch microwave. Use covered dishes for even heating and stir food during cooking. Add a teaspoon to liquids to prevent boiling over.
7.1 Defrosting Procedures
Defrosting with your Bosch microwave is efficient and safe. Use the defrost function, selecting the appropriate power level (e.g., 180W or 90W) and time based on food weight. Cover food to ensure even thawing and prevent splashing. For meat joints (e.g., beef, pork), defrost at 180W for 15-30 minutes per 800g-1.5kg. After defrosting, let food stand for 2-5 minutes to complete the process. Always follow the defrosting tables in your manual for precise settings. This method preserves food quality and prevents overheating. For smaller portions, adjust times accordingly to avoid over-defrosting.
7.2 Heating Up Food Safely
Heating food safely in your Bosch microwave requires attention to detail. Use microwave-safe containers and always cover food to prevent splashing. Stir or turn food midway through heating for even distribution. For liquids, add a teaspoon to avoid boiling over due to delayed boiling. After heating, let food stand for 2-5 minutes to ensure heat is evenly distributed. Avoid overheating, as this can lead to uneven cooking or food drying out. Always check food temperature before serving, especially for dishes like soups or sauces. Follow the guidelines in your manual for specific heating times and power levels.
7.3 Cooking Tips and Guidelines
For optimal cooking results in your Bosch microwave, use microwave-safe containers and cover food to ensure even heating. Stir or turn food midway through cooking for consistent results. Adjust cooking times based on food quantity and type, using the guidelines provided in the manual. When defrosting, ensure food is covered and stirred periodically. Utilize the memory function to store frequently used settings for convenience. Avoid using metal utensils or foil, as they can cause sparks. Always follow recommended power levels and times to prevent overcooking or undercooking. Proper cooking techniques enhance flavor and texture, making your culinary experience enjoyable and efficient.

Troubleshooting Common Issues
Identify and resolve common problems with your Bosch microwave, such as uneven heating or malfunction, by checking door alignment, power settings, and ensuring proper operation. This section provides practical solutions to restore functionality and ensure safe, efficient cooking.
8.1 Common Problems and Solutions
Address common issues with your Bosch built-in microwave, such as uneven heating or malfunction. Check if the door is properly closed or if food particles obstruct it. Ensure the start button is pressed and the power settings are correct; For uneven heating, verify that food is placed correctly and stirred during cooking. If the microwave doesn’t turn on, ensure it’s plugged in and the child safety lock is off. Refer to the troubleshooting guide in your manual for model-specific solutions, such as for HMB402 or HMB405 models, to restore functionality and ensure safe operation.
8.2 Appliance Not Working
If your Bosch built-in microwave is not working, first check the power supply and ensure the appliance is properly plugged in. Verify that the child safety lock is not activated and the door is closed securely. If the issue persists, inspect for blockages in the door seals or obstructions in the microwave compartment. For models like HMB402 or HMB405, consult the troubleshooting section in your manual. If the problem remains unresolved, contact Bosch customer support or schedule a service visit for professional assistance to restore functionality.

After-Sales Service and Support
Bosch offers dedicated customer support for your built-in microwave. Contact their service team at 1-800-944-2904 for repairs or to locate authorized service centers near you.