LEHMANN Ultrawash 4-in-1 Wet and Dry Vacuum Cleaner User Manual

1. Important Safety Instructions

Please read these safety instructions carefully before using the appliance. Failure to follow these instructions may result in electric shock, fire, and/or serious injury.

• Always unplug the appliance from the power outlet before cleaning, servicing, or performing any maintenance.
• Do not use the appliance with a damaged cord or plug. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent, or similarly qualified persons to avoid a hazard.
• Do not vacuum flammable or combustible liquids, such as gasoline, or use in areas where they may be present.
• Do not vacuum anything that is burning or smoking, such as cigarettes, matches, or hot ashes.
• Keep hair, loose clothing, fingers, and all parts of the body away from openings and moving parts.
• Do not allow children to operate the vacuum cleaner. Close supervision is necessary when any appliance is used by or near children.
• Use only as described in this manual. Use only manufacturer’s recommended attachments.
• Do not immerse the motor head in water or other liquids.
• Ensure all filters are correctly installed before operation.

2. Product Overview

The LEHMANN Ultrawash is a versatile 4-in-1 appliance designed for comprehensive cleaning tasks. It functions as a dry vacuum, wet vacuum, carpet/upholstery washer, and a blower.

Main Components:

• Motor Head with Control Panel
• 20-Liter Collection Tank (for dry debris or dirty water)
• 3-Liter Detergent Tank (for clean water and cleaning solution)
• Flexible Suction Hose
• Extension Tubes
• Floor Nozzle (for dry/wet vacuuming)
• Upholstery Washing Nozzle
• Carpet Washing Nozzle
• Crevice Tool
• HEPA Filter (for dry vacuuming)
• Foam Filter (for wet vacuuming)
• Dust Bag (for dry vacuuming)
• Wheels for mobility

Figure 1: The LEHMANN Ultrawash vacuum cleaner shown with its complete set of accessories, including various nozzles, hoses, and tanks.

Figure 2: A selection of nozzles and attachments included with the Ultrawash, designed for different cleaning tasks.

3. Assembly and Setup

1. Attach the Wheels: Insert the four caster wheels into the designated slots on the base of the collection tank until they click securely into place.
2. Connect the Suction Hose: Attach the flexible suction hose to the main suction inlet on the collection tank. Ensure a tight connection.
3. Assemble Extension Tubes and Nozzle: Connect the desired extension tubes to the end of the flexible hose, then attach the appropriate cleaning nozzle (e.g., floor nozzle for dry vacuuming, washing nozzle for wet cleaning).
4. For Washing Function (Wet Cleaning):
   • Attach the 3-liter detergent tank to the side of the main unit.
   • Connect the small spray hose from the detergent tank to the corresponding port on the motor head, and then to the washing nozzle.
   • Fill the detergent tank with clean water and an appropriate, low-foaming cleaning solution according to the solution manufacturer's instructions. Do not overfill.
5. Filter Installation:
   • For Dry Vacuuming: Ensure the HEPA filter and a dust bag are installed inside the collection tank.
   • For Wet Vacuuming/Washing: Remove the dust bag and HEPA filter. Install the foam filter over the motor head's filter cage.

Figure 3: Illustrates the process of filling the detergent tank with water and cleaning solution for wet cleaning operations.

4. Operating Instructions

4.1 Dry Vacuuming

• Ensure the HEPA filter and a dust bag are correctly installed.
• Attach the floor nozzle or crevice tool as needed.
• Plug the appliance into a power outlet and switch it on using the main power button.
• Vacuum dry debris from floors, carpets, or other surfaces.

Figure 4: The floor nozzle in action, demonstrating dry vacuuming on a carpeted surface.

4.2 Wet Vacuuming

• Remove the dust bag and HEPA filter. Install the foam filter.
• Attach the floor nozzle or other suitable wet vacuuming attachment.
• Plug in and switch on the appliance.
• Vacuum spilled liquids or wet debris. The appliance will collect the liquid in the 20-liter tank.

4.3 Carpet and Upholstery Washing

• Ensure the foam filter is installed and the detergent tank is filled with water and cleaning solution.
• Attach the carpet washing nozzle or upholstery washing nozzle.
• Plug in the appliance. Turn on the main power switch and the spray pump switch (if separate).
• Press the trigger on the nozzle to spray cleaning solution onto the surface while simultaneously moving the nozzle to vacuum the dirty solution.
• Work in small sections, overlapping slightly to ensure thorough cleaning.
• For heavily soiled areas, you may need to repeat the process or allow the solution to dwell for a short period before vacuuming.

Figure 5: The upholstery washing nozzle effectively cleaning a sofa, illustrating the removal of dirt and grime.

Figure 6: The carpet washing nozzle applying cleaning solution to a carpet, preparing it for deep cleaning.

4.4 Blower Function

• Disconnect the suction hose from the suction inlet.
• Connect the suction hose to the blower port on the motor head.
• Switch on the appliance. The air will now be expelled through the hose, allowing you to blow away debris from hard-to-reach areas or dry surfaces.

5. Maintenance and Care

5.1 Emptying and Cleaning Tanks

• After wet vacuuming or washing, always unplug the appliance.
• Unlatch the motor head and carefully lift it off the collection tank.
• Empty the dirty water from the 20-liter collection tank. Rinse the tank thoroughly with clean water.
• Empty any remaining solution from the 3-liter detergent tank and rinse it.

Figure 7: Demonstrates the proper method for emptying the dirty water from the main collection tank after use.

5.2 Filter Maintenance

• HEPA Filter (for Dry Vacuuming): Regularly check the HEPA filter for dust buildup. Tap it gently to dislodge dust or rinse it under cold running water if washable (refer to filter instructions). Ensure it is completely dry before re-installing.
• Foam Filter (for Wet Vacuuming): After wet use, remove the foam filter and rinse it thoroughly under running water. Squeeze out excess water and allow it to air dry completely before storage or next use.
• Dust Bag (for Dry Vacuuming): Replace the dust bag when it is full or when suction power decreases significantly.

Figure 8: An illustration of the HEPA and foam filter system, highlighting their role in ensuring clean air output.

5.3 Cleaning Accessories and Storage

• Rinse all nozzles, hoses, and extension tubes with clean water after use, especially after wet cleaning.
• Allow all components to air dry completely before storing the appliance.
• Store the vacuum cleaner and its accessories in a dry, cool place, away from direct sunlight and extreme temperatures.

6. Troubleshooting

7. Technical Specifications

Figure 9: An exploded diagram illustrating the main components and their respective capacities (20L collection tank, 3L detergent tank).

Figure 10: The physical dimensions of the Ultrawash unit, measuring 38 cm in length, 33 cm in width, and 49 cm in height.

8. Warranty and Support

LEHMANN products are manufactured to high-quality standards and are guaranteed against manufacturing defects. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official LEHMANN website.

If you encounter any issues or require technical assistance, please contact LEHMANN customer support. Have your model number (LHOVW-1620) and purchase information ready when contacting support.

For further information and support, please visit the LEHMANN Store on Amazon.