LEHMANN SteamWash 1800 (LHOSW-1819)
LEHMANN SteamWash 1800 4-in-1 Steam Cleaner and Extractor Vacuum User Manual
Model: SteamWash 1800 (LHOSW-1819) | Brand: LEHMANN
1. Introduction
Thank you for choosing the LEHMANN SteamWash 1800. This versatile 4-in-1 appliance combines the functions of a steam cleaner and an extractor vacuum, designed for effective cleaning of various surfaces including carpets, upholstery, and hard floors. Please read this manual thoroughly before initial use to ensure safe operation and optimal performance.
2. Safety Instructions
WARNING: Always follow basic safety precautions when using electrical appliances to reduce the risk of fire, electric shock, or injury.
- Read all instructions before using the appliance.
- Do not immerse the appliance in water or other liquids.
- Do not operate the appliance with a damaged cord or plug.
- Keep children and pets away from the appliance during operation.
- Use only manufacturer-recommended attachments.
- Always unplug the appliance before cleaning or servicing.
- Exercise caution when using steam, as it can cause burns.
- Do not direct steam at people, animals, or electrical components.
- Ensure proper ventilation when using the appliance in enclosed spaces.
3. Package Contents
Carefully unpack your LEHMANN SteamWash 1800 and check that all items are present and undamaged. If any items are missing or damaged, contact customer support.

Image: A comprehensive view of the LEHMANN SteamWash 1800 accessories, including various brushes, nozzles, and a window squeegee, laid out neatly.

Image: The LEHMANN SteamWash 1800 unit displayed alongside its full set of accessories, highlighting the complete cleaning kit.
- LEHMANN SteamWash 1800 Main Unit
- Fabric Nozzle
- Joint Nozzle
- Steam Brushes (various types)
- Scraper
- Window Squeegee with Microfiber Cover
- Hose (2.3 m)
- Power Cable (4 m)
- Accessory Storage Bag
- User Manual
4. Product Overview
The LEHMANN SteamWash 1800 is designed for powerful and versatile cleaning. Key features include:
- 4 Cleaning Modes: Cold water wash, hot water wash (approx. 60°C), textile steam cleaning, and high-temperature steam cleaning (approx. 116°C).
- Strong Suction Power: ≥16 kPa for effective stain and residue removal.
- Dual Tank System: 1.9 L clean water tank and 1.4 L dirty water tank for extended cleaning sessions.
- Mobility: 2.3 m hose, 4 m power cable, and 360° swivel wheels for easy maneuverability.
- Self-Cleaning Function: Simplifies post-use maintenance.

Image: The LEHMANN SteamWash 1800 unit, illustrating its compact dimensions (22D x 32W x 30H cm), 4.7 kg weight, 2.3m hose, and 4m cable.

Image: A clear view of the LEHMANN SteamWash 1800's dual tank system, showing the 1.9 L clean water tank and the 1.4 L dirty water tank.
5. Setup
- Positioning: Place the SteamWash 1800 on a stable, level surface near a power outlet.
- Fill Clean Water Tank: Open the clean water tank cap (usually blue or clear, 1.9 L capacity). Fill with clean tap water. For hot water cleaning, use water up to 60°C. For steam cleaning, use cold water; the machine will heat it. Do not overfill.
- Attach Hose and Nozzle: Connect the flexible hose securely to the main unit. Select the appropriate cleaning nozzle for your task and attach it firmly to the end of the hose.
- Power Connection: Plug the power cable into a grounded electrical outlet.
6. Operating Instructions
The SteamWash 1800 offers four distinct cleaning modes. Select the mode suitable for your cleaning needs.
6.1. Selecting a Cleaning Mode

Image: A circular diagram illustrating the four cleaning modes: cold water wash, hot water wash (60°C), textile steam, and high-temperature steam (116°C) for disinfection.
- Cold Water Wash: Ideal for general cleaning of fabrics and carpets where heat is not required or desired.
- Hot Water Wash (approx. 60°C): Effective for deeper cleaning of fabrics, carpets, and upholstery, helping to dissolve dirt and grime.
- Textile Steam Cleaning: Uses steam to refresh and clean delicate textiles without excessive moisture.
- High-Temperature Steam Cleaning (approx. 116°C): For sanitizing and deep cleaning hard surfaces like tiles, grout, kitchen appliances, and glass. This mode helps eliminate bacteria.
Use the control panel or handle buttons to select your desired mode. Allow the machine to heat up if selecting a hot water or steam mode.
6.2. General Operation Steps
- Pre-test: Always test the cleaning solution or steam on an inconspicuous area of the surface to be cleaned to ensure colorfastness and material compatibility.
- Apply Solution/Steam: Depending on the mode, press the trigger on the handle to spray water/solution or release steam.
- Scrub/Agitate: Use the appropriate nozzle or brush to gently scrub the soiled area.
- Extract: Release the trigger and move the nozzle over the wet area to vacuum up the dirty water. Repeat as necessary until the area is clean and as dry as possible.
- Steam Application: For high-temperature steam, hold the nozzle close to the surface. Move slowly to allow steam to penetrate and loosen dirt.

Image: A hand pressing the steam activation button located directly on the cleaning handle, indicating easy control during operation.

Image: A woman using the LEHMANN SteamWash 1800 to clean an armchair, demonstrating its use for upholstery cleaning.
6.3. Specific Applications
- Carpets and Upholstery: Use the fabric nozzle with hot water or textile steam mode. Move the nozzle slowly over the surface, spraying and extracting simultaneously. For stubborn stains, pre-treat with a suitable cleaning solution.
- Car Interiors: The compact design and various nozzles make it suitable for car seats, floor mats, and other interior surfaces. Use hot water or textile steam mode.
- Kitchen and Bathroom Surfaces: For grease, grime, and mold on tiles, grout, faucets, and stovetops, use the high-temperature steam mode with the joint nozzle or steam brushes.
- Windows and Glass: Attach the window squeegee with the microfiber cover for streak-free cleaning using steam.

Image: Two panels showing the LEHMANN SteamWash 1800 in action, cleaning both home upholstery and a car interior, demonstrating its versatility.

Image: A side-by-side comparison showing a heavily soiled faucet before and after being cleaned with the LEHMANN SteamWash 1800, highlighting its effectiveness against tough dirt and limescale.

Image: A collage of four images demonstrating the LEHMANN SteamWash 1800's high-temperature steam (116°C) being used to clean a stovetop, a range hood filter, bathroom grout, and the interior of a refrigerator, emphasizing its sanitizing capabilities.

Image: The LEHMANN SteamWash 1800 being used to steam clean bathroom tiles and grout, showing its application for hard-to-reach areas and stubborn dirt.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your SteamWash 1800.
- Empty and Clean Tanks: After each use, empty the dirty water tank and rinse both the clean and dirty water tanks thoroughly with fresh water. Allow them to air dry before reassembling.
- Self-Cleaning Function: The appliance features a self-cleaning function to maintain the internal system. Refer to the specific instructions in the full manual for activating this feature.
- Clean Nozzles and Brushes: Remove and rinse all used nozzles and brushes under running water. Remove any trapped debris.
- Wipe Down Unit: Wipe the exterior of the main unit with a damp cloth. Do not use abrasive cleaners.
- Storage: Store the appliance and its accessories in a dry, safe place, away from direct sunlight and extreme temperatures. Utilize the hose storage support and accessory bag for organization.

Image: A close-up of the LEHMANN SteamWash 1800's water tanks and control panel, highlighting the self-cleaning function for easy maintenance.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Appliance does not turn on. | Not plugged in; power outlet fault; power switch off. | Ensure plug is securely in a working outlet. Check power switch. |
| No steam/water spray. | Clean water tank empty; nozzle clogged; heating element not ready. | Refill clean water tank. Clean nozzle. Allow sufficient time for heating. |
| Low suction power. | Dirty water tank full; hose/nozzle clogged; tank seals not properly seated. | Empty dirty water tank. Clear any blockages in hose/nozzle. Check tank seals. |
| Water leaking. | Tanks not properly seated; hose/nozzle not securely attached. | Ensure tanks are correctly installed. Re-attach hose and nozzle firmly. |
If you encounter issues not listed here or if the problem persists, please contact LEHMANN customer support.
9. Specifications
| Feature | Detail |
|---|---|
| Brand | LEHMANN |
| Model Name | SteamWash 1800 |
| Model Number | LHOSW-1819 |
| Color | Black/Red |
| Item Weight | 4.7 Kilograms |
| Product Dimensions (D x W x H) | 22 x 32 x 30 centimeters |
| Clean Water Tank Capacity | 1.9 Liters |
| Dirty Water Tank Capacity | 1.4 Liters |
| Power Source | Electric Cable |
| Hose Length | 2.3 meters |
| Power Cable Length | 4 meters |
| Suction Power | ≥16 kPa |
| Hot Water Temperature | Approx. 60°C |
| Steam Temperature | Approx. 116°C |
| Country of Origin | China |
10. Warranty and Support
10.1. Warranty Information
The LEHMANN SteamWash 1800 comes with the following warranty:
- Private Customers: 2 years warranty.
- Professional Customers: 1 year warranty.
Please retain your proof of purchase for warranty claims. The warranty covers manufacturing defects under normal use. It does not cover damage caused by misuse, neglect, accidents, or unauthorized modifications.
10.2. Customer Support
For technical assistance, warranty claims, or questions regarding your LEHMANN SteamWash 1800, please contact LEHMANN customer support through the retailer where you purchased the product or visit the official LEHMANN website for contact information.
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