1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your De Dietrich 74X9552 Active Carbon Filter. This filter is designed to purify air in recirculating extractor hoods by absorbing cooking odors and grease particles. For optimal performance, please read these instructions carefully before use.
The De Dietrich 74X9552 carbon filter is an original replacement part, ensuring compatibility and performance with specified De Dietrich extractor hood models.
2. Product Overview
The De Dietrich 74X9552 is an active carbon filter specifically designed for use in recirculating extractor hoods. It utilizes activated carbon technology to effectively neutralize cooking odors and trap grease, contributing to a cleaner kitchen environment.

Image: Two De Dietrich 74X9552 active carbon filters, showing their grid-like structure.
Key Features:
- Technology: Active Carbon Filter
- Dimensions: Approximately 23.8 cm (Length) x 19 cm (Width) x 1 cm (Height)
- Quantity: Typically supplied as a set of two filters (DHK470AE1 H273921)
- Compatibility: Designed for various De Dietrich extractor hood models (see Specifications section for a detailed list).

Image: Detailed dimensions of the carbon filter, indicating length, width, and height.
3. Installation Instructions
Before beginning installation, ensure your extractor hood is switched off and disconnected from the power supply to prevent electrical hazards.
- Access the Filter Compartment: Open the grease filter grilles or remove the metal grease filters from your extractor hood. Refer to your hood's specific user manual for exact instructions on accessing the filter compartment.
- Remove Old Filters: If old carbon filters are present, carefully unclip or detach them from their housing. Dispose of used filters responsibly.
- Insert New Filters: Position the new De Dietrich 74X9552 carbon filters into the designated slots or frames. Ensure they are securely clipped or locked into place. The filters are typically installed in pairs.
- Secure the Compartment: Close the grease filter grilles or re-install the metal grease filters.
- Reconnect Power: Reconnect the extractor hood to the power supply.

Image: Visual guide demonstrating the placement of the carbon filter within an extractor hood.
Important: Always ensure the filters are correctly seated to prevent them from falling during operation and to ensure effective air purification.
4. Operating the Extractor Hood with Carbon Filters
Once the carbon filters are installed, operate your extractor hood as usual. The active carbon within the filters will absorb cooking odors and purify the air before recirculating it back into the kitchen. No special operating procedures are required beyond the standard use of your extractor hood.
5. Maintenance
Active carbon filters cannot be washed or regenerated. Their effectiveness diminishes over time as they become saturated with absorbed odors and particles.
Filter Replacement:
- It is recommended to replace the carbon filters every 3 to 6 months, depending on the frequency and intensity of cooking.
- If you notice a decrease in odor absorption or an increase in cooking smells in your kitchen, it is likely time to replace the filters.
- Always replace both filters simultaneously for consistent performance.
Disposal:
Used carbon filters should be disposed of according to local waste disposal regulations. They are generally considered household waste.
6. Troubleshooting
Problem: Extractor hood is not effectively removing odors.
- Solution 1: Check the age of your carbon filters. If they are older than 3-6 months or if cooking is frequent, they may be saturated and require replacement.
- Solution 2: Ensure the carbon filters are correctly installed and securely seated in their compartments.
- Solution 3: Verify that the metal grease filters are clean. Clogged grease filters can reduce airflow and the overall effectiveness of the hood. Clean or replace them as needed.
- Solution 4: Confirm that your extractor hood is set to recirculation mode if it has both extraction and recirculation options.
If problems persist after checking these points, consult the user manual for your specific De Dietrich extractor hood model or contact customer support.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | De Dietrich |
| Part Number | 74X9552 |
| Technology | Active Carbon Filter |
| Length | 23.8 cm |
| Width | 19 cm |
| Height | 1 cm (approximate, as per product description) |
| Quantity | 2 (DHK470AE1 H273921) |
| Compatible Extractor Hood Models |
|
| Equivalent Product Numbers | 5026758600, 1248048198 |
| Manufacturer | DE DIETRICH |
| ASIN | B00CZRQZAA |
Note: Product specifications are subject to change without prior notice. Always verify compatibility with your specific appliance model.
8. Warranty and Support
This De Dietrich 74X9552 Active Carbon Filter is an original spare part. For information regarding warranty coverage, please refer to the documentation provided with your De Dietrich extractor hood or contact the retailer from whom you purchased the filter.
For technical support or inquiries about product compatibility, please contact De Dietrich customer service or the authorized dealer. Always provide the model number of your extractor hood and the part number (74X9552) of the filter when seeking assistance.
You can often find support information on the official De Dietrich website or through your local appliance service center.