Bosch Serie 8 Dryer Manual: A Comprehensive Guide
This manual details the Bosch Serie 8 dryer, specifically the WTX88RH9GB model, offering guidance on installation, operation, maintenance, and troubleshooting for optimal performance.
Welcome to the world of advanced laundry care with your Bosch Serie 8 dryer! This premium appliance, like the WTX88RH9GB model, represents a significant investment in efficient and gentle fabric drying. This dryer utilizes heat pump technology for superior energy efficiency and outstanding drying results.
Before operating your new dryer, carefully review this comprehensive manual. It provides essential information regarding safety precautions, proper installation procedures, detailed operating instructions, and crucial maintenance guidelines. Understanding these aspects will ensure optimal performance, longevity, and peace of mind throughout the appliance’s lifespan.

Key Features of the WTX88RH9GB Model

The Bosch Serie 8 WTX88RH9GB is a freestanding dryer boasting a generous 9kg capacity, ideal for families and larger laundry loads. Its heat pump technology significantly reduces energy consumption while delivering exceptional drying performance. This model features advanced features like ActiveAir Technology, ensuring gentle fabric care.
Furthermore, it includes intelligent drying sensors, automatically adjusting the drying cycle to prevent over-drying and damage. The self-cleaning condenser minimizes maintenance, and the anti-vibration design ensures quiet operation. Enjoy convenient features and superior drying results with this innovative appliance.
Safety Precautions and Warnings
Prior to operating your Bosch Serie 8 dryer, carefully review all safety instructions. Never install the dryer in a washer-dryer stack without the manufacturer’s specified connection kit. Ensure proper ventilation to prevent fire hazards. Do not dry items that have been exposed to flammable substances like gasoline or cleaning solvents.
Always disconnect the dryer from the power supply before cleaning or maintenance. This appliance is not intended for use by persons with reduced physical, sensory, or mental capabilities. Supervise children to ensure they do not play with the appliance.
General Safety Instructions
Always read and understand these instructions before using the Bosch Serie 8 dryer. This appliance is designed for household use only. Do not modify the dryer in any way, as this could compromise safety. Ensure the electrical supply matches the dryer’s requirements. Avoid overloading the dryer, as this can affect performance and potentially cause damage.
Inspect the power cord regularly for damage and replace if necessary. Never operate the dryer if it is damaged. Keep the area around the dryer free from flammable materials. Follow all warning labels displayed on the appliance.
Specific Installation Warnings
Do not install the Bosch Serie 8 dryer in a washer-dryer stack unless a suitable connection kit is provided by the manufacturer. Improper stacking can create a serious safety hazard. Ensure adequate ventilation around the dryer during installation to prevent overheating. The dryer must be leveled correctly to ensure stable operation and prevent excessive noise.
Avoid installing the dryer in areas exposed to extreme temperatures or humidity. Do not block the air intake or exhaust vents. Always adhere to local building codes and regulations during installation.
Installation Guide
Before installation, carefully read all provided operating and installation instructions. Proper installation is crucial for safe and efficient operation of your Bosch Serie 8 dryer. Begin by selecting a suitable location, ensuring sufficient space for ventilation and access for maintenance. The dryer requires a compatible power supply; verify voltage and frequency requirements before connecting.
Follow the detailed steps for positioning and leveling the appliance, utilizing a spirit level for accuracy. Securely connect the dryer to the power supply, adhering to all safety guidelines.
Positioning and Leveling the Dryer
Carefully position the dryer on a firm, level surface to minimize vibrations and ensure stable operation. Maintain adequate space around the appliance for proper ventilation – crucial for efficient drying performance. Utilize a spirit level to verify the dryer is perfectly horizontal; adjust the leveling feet as needed until stability is achieved.
Incorrect leveling can cause excessive noise and potentially damage the appliance. Ensure the floor can support the dryer’s weight, especially when fully loaded with laundry. Avoid placing the dryer on uneven flooring.
Connecting to Power Supply
Before connecting, verify the voltage and frequency of your power supply match the dryer’s specifications (found on the rating plate). Use a properly grounded outlet to prevent electrical shock. Never use extension cords or adapters; connect the dryer directly to a dedicated circuit. Ensure the power cable isn’t pinched or damaged during installation.
Always switch off the power supply before any maintenance or cleaning. Improper electrical connection can void the warranty and pose a safety hazard. Consult a qualified electrician if unsure about any aspect of the electrical connection.
Operating Instructions
To begin, ensure the dryer is correctly installed and the power is on. Familiarize yourself with the control panel, which features program selection, dryness level adjustments, and start/pause buttons. Load laundry, ensuring not to overload the drum for optimal drying. Select the appropriate drying program based on fabric type and desired dryness.
Press the ‘Start’ button to initiate the cycle. The display will show the remaining time. Avoid interrupting the cycle unless necessary. Always follow the safety precautions outlined in this manual during operation.
Understanding the Control Panel
The Bosch Serie 8 dryer’s control panel features a user-friendly interface. A central dial selects drying programs – Cotton, Delicates, and more. Buttons adjust dryness levels, from extra dry to delicate. An ‘Options’ button allows customization, like anti-crease. The display shows program details, remaining time, and error messages.
Indicator lights signal cycle status – running, finished, or paused. A ‘Start/Pause’ button controls operation. Familiarize yourself with each function for efficient and tailored drying. Refer to the program guide for optimal settings.
Selecting Drying Programs
Choosing the correct drying program is crucial for fabric care and efficiency. The Bosch Serie 8 offers specialized programs like ‘Cotton’, for everyday items, and ‘Delicates’, for sensitive fabrics. ‘Mixed Loads’ efficiently dries various textiles. Utilize ‘Time Drying’ for specific durations, or ‘Sensor Drying’ which automatically detects moisture levels.
Consider fabric type and desired dryness. The control panel clearly labels each program. Refer to garment care labels for guidance. Incorrect program selection can damage clothes or waste energy. Experiment to find optimal settings for your laundry needs.
Drying Programs Explained
The Bosch Serie 8 dryer boasts a range of programs tailored to diverse laundry needs. ‘Cotton’ programs offer varying heat levels for different cotton items, from heavy-duty towels to lighter shirts. ‘Delicate Fabrics’ utilizes lower temperatures to protect sensitive materials like silk and lace. Specialized cycles include ‘Wool’, ‘Down Feather’, and ‘Synthetics’.
Understanding each program’s function ensures optimal drying and fabric preservation. Sensor drying technology adjusts drying time automatically, preventing over-drying and saving energy. Consult the control panel display for detailed program descriptions.
Cotton Programs
Bosch Serie 8 cotton programs cater to various cotton laundry types. ‘Cotton Standard’ is ideal for everyday items, while ‘Cotton Eco’ offers energy savings with extended drying times. ‘Cotton Gentle’ uses lower temperatures for delicate cottons, minimizing shrinkage. ‘Extra Dry’ ensures thorough drying for bulky items like bedding, and ‘Iron Dry’ leaves clothes slightly damp for easier ironing.
These programs utilize sensor technology to detect moisture levels, automatically adjusting drying duration. Always check garment care labels before selecting a cotton program to prevent damage.
Delicate Fabrics Programs
The Bosch Serie 8 offers specialized programs for delicate fabrics, ensuring gentle care. ‘Delicates’ is suitable for synthetic blends and lingerie, utilizing low heat to prevent damage. ‘Silk’ provides an ultra-mild cycle for silk garments, minimizing shrinkage and preserving luster. ‘Wool’ is certified by Woolmark Apparel Care, guaranteeing safe drying of woolens.
These programs employ precise temperature control and gentle tumbling action. Always check garment care labels and consider using a laundry bag for extra protection during the drying process.
Understanding Dryness Levels
The Bosch Serie 8 dryer allows precise control over dryness levels, catering to diverse fabric types and preferences. Options include ‘Cupboard Dry’, ideal for items ready to be stored, and ‘Iron Dry’, leaving clothes slightly damp for easier ironing. ‘Hanger Dry’ offers a gentler cycle for items needing minimal drying.
Selecting the appropriate level prevents over-drying and potential damage. Adjusting dryness based on fabric type ensures optimal results and prolongs garment life, maximizing efficiency and care.
Defining Different Dryness Settings
The Bosch Serie 8 dryer features distinct dryness settings for tailored results. ‘Extra Dry’ is suited for heavy items like towels, ensuring thorough drying. ‘Normal Dry’ is versatile for everyday laundry, while ‘Low Heat’ protects delicate fabrics. ‘Time Dry’ allows manual setting of drying duration.
Understanding these settings is crucial for preventing damage and achieving desired results. Each level impacts energy consumption and drying time, offering flexibility and control over the drying process for various textiles.
Adjusting Dryness Based on Fabric Type
Optimal drying requires adjusting settings to match fabric types. Delicate fabrics like silk benefit from ‘Delicate’ programs and ‘Low Heat’ settings to prevent shrinkage or damage. Cotton items thrive with ‘Normal Dry’ or ‘Extra Dry’ for thoroughness.

Synthetic materials require lower temperatures to avoid melting or deformation. Always consult garment care labels for specific instructions. Utilizing appropriate settings extends fabric lifespan and ensures efficient drying, preserving clothing quality.

Maintenance and Cleaning
Regular maintenance ensures optimal performance and longevity of your Bosch Serie 8 dryer. Crucially, the condenser unit requires periodic cleaning to maintain efficient drying. Similarly, the fluff filter must be cleaned after every drying cycle to prevent reduced airflow and potential fire hazards.
Wipe down the dryer’s exterior with a damp cloth. Avoid harsh chemicals. Consistent cleaning prevents buildup, maximizing efficiency and safeguarding against malfunctions, ultimately extending the appliance’s lifespan.
Cleaning the Condenser Unit
The condenser unit in your Bosch Serie 8 dryer requires regular cleaning for optimal performance. A clogged condenser significantly reduces drying efficiency and increases energy consumption. Access the condenser, typically located at the base of the dryer, and carefully remove any lint or debris.
Use a vacuum cleaner with a brush attachment for thorough cleaning. Rinse under cool, running water if necessary, ensuring it’s completely dry before reinstalling. Cleaning frequency depends on usage, but every few months is recommended.
Cleaning the Fluff Filter
Regularly cleaning the fluff filter is crucial for maintaining your Bosch Serie 8 dryer’s efficiency. Located inside the dryer door, the fluff filter traps lint and fibers released during the drying process. After each drying cycle, remove the filter and clean it thoroughly by hand, removing all accumulated fluff.

A clogged filter restricts airflow, increasing drying time and energy usage. Ensure the filter is completely dry before reinserting it. Inspect the filter housing for any remaining lint and clean as needed.
Troubleshooting Common Issues
Encountering problems with your Bosch Serie 8 dryer can be frustrating. If the dryer isn’t starting, check the power supply and ensure the door is securely closed. For issues with heating, verify the dryer isn’t in a no-heat program and that the condenser unit isn’t blocked.
Always consult the error code display for specific diagnostics. A blocked fluff filter or condenser can also cause performance issues. If problems persist, refer to the detailed error code section or contact Bosch support.
Dryer Not Starting

If your Bosch Serie 8 dryer fails to start, first confirm it’s properly plugged into a functioning power outlet. Ensure the door is completely closed, as a safety mechanism prevents operation if it’s ajar. Check if a program has been selected and the ‘Start’ button pressed.
Verify there isn’t a power outage affecting your home. If these steps don’t resolve the issue, consult the error code display for potential clues, or contact Bosch customer support for assistance with more complex problems.
Dryer Not Heating
Should your Bosch Serie 8 dryer run but not produce heat, the issue likely lies within the heating element or associated components. First, ensure the condenser unit is clean, as restricted airflow can trigger safety shutdowns. Check for error codes displayed on the control panel, as these pinpoint the problem.
A clogged fluff filter can also contribute to overheating protection activation. If the problem persists, professional service is recommended, as heating element repairs require specialized knowledge and tools for safe and effective resolution.
Error Codes and Their Meanings

The Bosch Serie 8 dryer utilizes error codes to diagnose internal issues, displayed on the control panel. These codes offer valuable insight into the problem, aiding troubleshooting. Decoding these messages is crucial for efficient repair. Common codes relate to condenser issues, water container fullness, or sensor malfunctions.
Consult the full error code list within this manual or on the Bosch support website for specific explanations. Addressing the indicated issue often resolves the error, restoring dryer functionality. Ignoring error codes can lead to further damage.
Decoding Error Messages
Error messages on your Bosch Serie 8 dryer are the appliance’s way of communicating a problem. These aren’t random; each code corresponds to a specific fault. Begin by noting the exact code displayed – it’s usually a letter followed by numbers. Refer to the comprehensive error code list in this manual or online at Bosch’s support portal.
Understanding the message helps pinpoint the issue, potentially avoiding unnecessary service calls. Common errors involve condenser problems, blocked filters, or sensor failures. Accurate decoding is the first step towards resolution.
Resolving Error Code Issues
Once you’ve decoded the error message, attempt a simple fix before contacting support. Often, errors relate to maintenance – check and clean the fluff filter and condenser unit thoroughly. For water-related errors, ensure the drain hose isn’t kinked or blocked. If the error persists after these checks, try restarting the dryer.
Consult the manual for code-specific solutions; some require professional attention. Never attempt repairs yourself if you’re uncomfortable or unqualified, as this could void the warranty and create safety hazards.
Appliance Registration and Support
Registering your Bosch Serie 8 dryer unlocks numerous benefits, including extended warranty options, exclusive offers, and priority access to customer support. Registration is simple and can be completed online through the Bosch website, requiring your appliance’s model and serial number.

For troubleshooting assistance, frequently asked questions, and downloadable manuals, visit the Bosch support website. If you require direct assistance, Bosch offers a dedicated customer service helpline and online chat support for prompt resolution of any issues.
Technical Specifications (WTX88RH9GB)
The Bosch Serie 8 WTX88RH9GB is a freestanding dryer with a generous 9kg capacity, ideal for medium to large households. Its dimensions are carefully designed for integration into most laundry spaces. Energy consumption is optimized through its heat pump technology, achieving an excellent energy efficiency rating.
Detailed specifications include precise weight (approximately 60kg) and standard voltage/frequency requirements. Further technical data, such as drum volume and noise levels during operation, are available in the full product documentation.
Dimensions and Weight
The Bosch Serie 8 WTX88RH9GB dryer is designed as a freestanding unit, requiring adequate space for ventilation and operation. Approximate dimensions are height 850mm, width 600mm, and depth 665mm – ensuring compatibility with standard laundry room layouts.
Its weight is around 60 kilograms, facilitating manageable installation while maintaining stability during the drying cycle. Precise measurements are crucial for planning installation, especially when integrating the dryer alongside other appliances. Always verify these dimensions before purchase and installation.
Energy Consumption Details
The Bosch Serie 8 WTX88RH9GB dryer, utilizing heat pump technology, is designed for efficient energy use. It boasts an energy efficiency rating, contributing to lower electricity bills and reduced environmental impact. Typical energy consumption per cycle varies based on load size and program selection.
The annual energy consumption is estimated at around 176 kWh, providing a benchmark for long-term cost analysis. Understanding these details allows users to optimize drying habits and minimize energy waste, aligning with sustainable practices.
Frequently Asked Questions (FAQ)
Q: Why isn’t my dryer starting? Ensure the power cord is securely plugged in and the door is properly closed. Q: What if an error code appears? Consult the ‘Error Codes and Their Meanings’ section for troubleshooting steps. Q: How do I register my appliance? Visit the Bosch website for easy online registration and access to support.
Q: Can I stack the dryer? Only with a suitable connection kit from the manufacturer. Q: How often should I clean the condenser? Regular cleaning optimizes performance and efficiency.
