1. Introduction
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your KÄRCHER SE 3-18 Compact Cordless Carpet Cleaner. Please read these instructions carefully before first use and keep them for future reference.
The KÄRCHER SE 3-18 Compact is a battery-powered spray extraction cleaner designed for deep cleaning textile surfaces such as car seats, upholstered furniture, and carpets. Its compact design and light weight offer optimal flexibility for various cleaning tasks.
2. Safety Instructions
Always observe basic safety precautions when using electrical appliances to reduce the risk of fire, electric shock, and personal injury. Ensure the appliance is used only for its intended purpose as described in this manual. Do not operate the appliance if it is damaged. Keep children and unauthorized persons away from the appliance during operation.
3. Package Contents
Verify that all items are present upon unpacking:
- KÄRCHER SE 3-18 Compact Unit
- Integrated Spray and Suction Hose
- Upholstery Nozzle
- Crevice Nozzle
Note: The 18V battery and charger are not included and must be purchased separately.
4. Setup
- Battery Installation: Insert a fully charged KÄRCHER 18V Battery Power battery into the designated battery slot on the unit until it clicks into place.
- Fill Clean Water Tank: Remove the clean water tank. Fill it with clean water, and if desired, add a suitable KÄRCHER carpet cleaning agent according to its instructions. Do not overfill. Reinsert the tank securely.
- Attach Hose and Nozzle: Connect the integrated spray and suction hose to the unit. Select the appropriate nozzle (upholstery or crevice) for your cleaning task and attach it to the end of the hose.


Video 4.1: This video demonstrates the initial setup and basic operation of a carpet cleaner, including filling the water tank and activating the device. Note: The video shows a similar product, but the principles of operation apply.
5. Operating Instructions
The KÄRCHER SE 3-18 Compact uses a spray extraction method to clean. This involves spraying a cleaning solution onto the textile surface and immediately vacuuming it up along with the loosened dirt.
- Pre-treatment (Optional): For heavily soiled areas, you may pre-spray the cleaning solution and allow it to soak for a few minutes before proceeding with deep cleaning.
- Start Cleaning: Turn on the appliance. Press the spray trigger on the nozzle to apply the cleaning solution while simultaneously moving the nozzle slowly over the surface.
- Extract Dirt: Release the spray trigger and continue to move the nozzle over the wet area to vacuum up the dirty solution. Repeat this process until the area is clean and as much moisture as possible has been extracted.
- Drying: Allow the cleaned textile surface to air dry completely. The appliance's efficient suction helps reduce drying time.



Video 5.1: This video illustrates the process of deep cleaning upholstery using a spray extraction method, effectively removing stains and dirt. Note: The video shows a similar product, but the cleaning technique is applicable.
6. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your appliance.
- Empty Dirty Water Tank: After each use, remove the dirty water tank and empty its contents. Rinse the tank thoroughly with clean water.
- Clean Unit and Nozzles: Wipe down the exterior of the unit with a damp cloth. Rinse the spray and suction hose and nozzles with clean water to prevent blockages.
- Filter Maintenance: The appliance is equipped with a HEPA filter. Refer to the full product manual for specific instructions on cleaning or replacing the HEPA filter.
- Storage: Ensure all components are clean and dry before storing. The compact design allows for easy storage.

7. Troubleshooting
If you encounter issues with your KÄRCHER SE 3-18 Compact, refer to the following common problems and solutions:
- No Suction: Check if the dirty water tank is full or if the hose/nozzle is blocked. Ensure all connections are secure.
- No Spray: Verify that the clean water tank has sufficient water and that the spray nozzle is not clogged.
- Reduced Performance: A low battery charge can affect performance. Ensure the battery is fully charged. Check and clean the HEPA filter if necessary.
- Leakage: Ensure all tanks and hoses are correctly installed and sealed.
For persistent issues, contact KÄRCHER customer support.
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | 1.081-506.0 |
| Brand | KÄRCHER |
| Power Source | 18V Battery (Lithium Ion) |
| Voltage | 18 Volts |
| Power | 200 W |
| Clean Water Tank Capacity | 1.6 Liters |
| Recommended Surface | Textiles |
| Filter Type | HEPA Filter |
| Dimensions (L x W x H) | 41.4 x 22.5 x 26.1 cm |
| Weight (without battery) | 4.25 kg |
| Cordless | Yes |

9. Warranty and Support
KÄRCHER products are manufactured to high-quality standards and come with a manufacturer's warranty. For detailed warranty information, product registration, or technical support, please visit the official KÄRCHER website or contact their customer service department. Keep your purchase receipt as proof of purchase.







