1. Introduction and Overview
This manual provides detailed instructions for the safe and efficient operation, installation, and maintenance of your Bosch 300 Series 24-Inch Condensation Dryer (Model WTG86403UC). This ENERGY STAR certified appliance is designed for optimal drying performance with a 4 cu. ft. capacity and features Wi-Fi connectivity for enhanced control.
Please read this manual thoroughly before using your dryer for the first time. Keep it in a safe place for future reference.

Figure 1.1: Front view of the Bosch 300 Series 24-Inch Condensation Dryer.
2. Setup and Installation
The Bosch 300 Series dryer offers flexible installation options, allowing it to be placed side-by-side with a matching washer or stacked vertically to save space. Ensure the appliance is placed on a stable, level surface in a well-ventilated area. For electrical connection, refer to the specific requirements outlined in the installation guide provided with your appliance.

Figure 2.1: Bosch 300 Series Dryer installed side-by-side with a matching washer.

Figure 2.2: Bosch 300 Series Dryer stacked on top of a matching washer.

Figure 2.3: Dryer dimensions: 23.58 inches (width) x 23.58 inches (depth) x 33.14 inches (height).
3. Operating Instructions
Your Bosch dryer features an intuitive control panel with a central dial and a digital display for selecting and monitoring drying cycles. It offers 15 dry cycles and 4 temperature settings to accommodate various fabric types and drying needs.

Figure 3.1: Control panel of the Bosch 300 Series Dryer.

Figure 3.2: Detailed view of the drying cycle selection dial, showing options like Perm Press Extra Dry, Cotton Extra Dry, Sanitize, Jeans, and Air Fluff/No Heat.
3.1 Selecting a Drying Cycle
- Load Laundry: Open the dryer door and load your laundry. Ensure the load is not overfilled to allow for proper air circulation.
- Close Door: Securely close the dryer door.
- Select Cycle: Turn the central dial to select one of the 15 available dry cycles, such as 'Cotton Dry', 'Towels', 'Sanitize', 'Jeans', 'Delicates', or 'Timed Dry Variable'.
- Adjust Settings (Optional): Use the touch controls on the digital display to adjust additional settings like 'Dry Level', 'Time Dry', 'Finish In', 'Wrinkle Block', 'Low Heat', or 'Signal'.
- Start Cycle: Press the 'Start/Pause' button to begin the drying cycle.
3.2 Understanding Dryness Levels
The 'Dry Level' setting allows you to customize the desired dryness of your clothes. Options typically range from 'Damp' (for items you plan to iron) to 'Extra Dry' (for items requiring complete dryness). Adjust this setting based on your specific needs and fabric type.
4. Maintenance
Regular maintenance is crucial for the optimal performance and longevity of your condensation dryer. Neglecting maintenance can lead to reduced drying efficiency and potential issues.
4.1 Cleaning the Lint Trap
The lint trap must be cleaned after every drying cycle. This prevents lint buildup, which can restrict airflow and cause the dryer to overheat or become inefficient. The lint trap is easily accessible and slides out for cleaning.

Figure 4.1: Interior of the dryer drum with the lint trap visible at the bottom of the opening.
4.2 Cleaning the Condenser and Sump
As a condensation dryer, your appliance collects moisture in a condenser unit and a sump. These components require periodic cleaning to prevent lint and debris buildup, which can lead to poor drying performance, unpleasant odors, or even operational faults. The frequency of cleaning depends on usage, but generally, every few months is recommended. Refer to the full product manual for detailed instructions on accessing and cleaning these specific components, as it may involve removing panels.
5. Troubleshooting
This section provides solutions to common issues you might encounter with your Bosch dryer. For problems not listed here, or if solutions do not resolve the issue, please contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Dryer not starting | Door not closed properly; Power supply issue; Cycle not selected. | Ensure door is fully latched. Check power cord connection and circuit breaker. Select a cycle and press Start. |
| Clothes not drying completely | Overloaded dryer; Clogged lint trap; Dirty condenser/sump; Incorrect cycle/dryness level. | Reduce load size. Clean lint trap after every cycle. Clean condenser and sump regularly. Select a higher dryness level or a more appropriate cycle. |
| Unpleasant odor from dryer | Lint or debris buildup in condenser/sump; Moisture trapped inside. | Thoroughly clean the condenser and sump. Ensure proper ventilation in the laundry area. |
| Dryer making unusual noises | Foreign objects in drum; Leveling issues; Worn components. | Check drum for loose items. Ensure dryer is level. If noise persists, contact service. |
6. Specifications
| Feature | Detail |
|---|---|
| Brand | Bosch |
| Model Number | WTG86403UC |
| Capacity | 4.4 Cubic Feet |
| Dimensions (WxDxH) | 23.58 x 23.58 x 33.14 inches |
| Item Weight | 92.2 pounds |
| Color | White |
| Noise Level | 67 dB |
| Standard Cycles | 15 |
| Temperature Settings | 4 |
| Form Factor | Front Load |
| Certification | ENERGY STAR, ADA |
| Material Type | Stainless Steel (drum) |
7. Warranty and Support
For detailed warranty information, please refer to the warranty card included with your appliance or visit the official Bosch website. Bosch provides customer support for assistance with product inquiries, technical issues, and service requests.
You can find more information and contact details on the Bosch Store on Amazon or through their official customer service channels.





