Lefant M350 Robot Vacuum and Mop Combo Instruction Manual

1. Introduction

Thank you for choosing Lefant. Before using the product, please read this user manual carefully and keep it in a safe place for future reference. This manual will help you fully understand and quickly install your robot vacuum cleaner (hereinafter referred to as 'robot'). It also provides detailed information on usage and maintenance to ensure you get the best experience from the product.

If you encounter situations not adequately covered in this user manual, please contact our after-sales service. We will address your specific issues.

For more information, visit the official Lefant ROBOTICS website: www.lefant.com, or send an email to the following address: NA: support.us@lefant.com, EU: support.eu@lefant.com, JP: support.jp@lefant.com, Other countries: support@lefant.com.

You can also scan the QR code or download the 'Lefant' app from your app store to connect to the robot and unlock additional features.

Important Safety Information

Please observe the following precautions to ensure safe operation and prevent damage:

• This product is intended solely for floor cleaning in a domestic environment. Do not use it outdoors (e.g., on an open balcony), on non-floored surfaces (e.g., sofas), or in commercial or industrial settings.
• Clean or maintain the self-emptying charging base (hereinafter referred to as 'base station') and the robot when the base station is unplugged and the robot is turned off.
• Do not use the robot and base station as toys, nor ride or stand on them. Supervise children and pets and keep them as far away as possible when the robot or base station is operating.
• Do not use this product in a room where infants or small children are sleeping.
• Do not allow children or individuals with physical, mental, or sensory disabilities to use or operate this product.
• If using in an elevated environment (e.g., a duplex floor), ensure a robust physical barrier is installed to prevent personal injury or property damage from accidental falls.
• Keep limbs or other body parts of people or pets away from the rotating brush head area of the robot and out of machine crevices to prevent injury.
• Before use, clear loose wires and other foreign objects from the floor, and remove easily overturned, fragile, valuable, and potentially dangerous items to prevent them from being tangled, blocked, dragged, or knocked over by the robot, which could cause personal injury or property damage.
• Ensure there is no standing water on the floor where the robot operates, as this could cause water infiltration damage to the device.
• Do not use it to clean burning objects (e.g., unextinguished cigarette butts, matches, ashes) or flammable and explosive items (e.g., lighters, gasoline, toner, and printer/copier powders).
• Before use, ensure components such as the dustbin, filter, dust bag, side brush, cleaning cloth, main brush, and main brush cover are correctly installed.
• Do not use the product without the dust bag installed.
• Beware of hot water burns. Do not touch the water outlet of the base station.
• Do not pour any liquid onto the robot and base station.
• Do not use it to clean long-pile carpets (some dark-colored carpets may not be cleaned adequately).
• If the product is damaged in any way, do not use it and promptly contact official after-sales service for a solution.
• Do not store or use the product in an environment with temperatures above 40°C, below 0°C, or where there are liquids or viscous substances on the floor.
• Do not use any disinfectant other than the official cleaning solution, as this could cause severe damage to the robot and base station.
• Do not place any objects on the robot, base station, or the dust collection inlet of the base station, and do not cover or obstruct these elements with any items (including dust covers).
• Avoid hard or sharp objects (e.g., renovation debris, glass, nails) on the floor where the robot operates, as they could scratch the device and the floor.
• The base station must be placed on a hard, horizontal indoor floor, and the robot, base station, and power cord should be kept away from open flames, heat sources (e.g., radiators), and damp areas, standing water, narrow spaces, or areas where the robot might get suspended.
• Collect fragile objects and debris placed on the floor (e.g., vases, mirrors, plastic bags) to prevent damage to valuable household items if the robot gets stuck or makes slight contact during operation.
• Do not place low objects such as mats and shoes in positions like stair ramps that could cause the robot to fall, as this could interfere with the normal operation of the robot's anti-drop sensor and cause it to fall.
• Use this product in accordance with the instructions in the user manual. Any loss and damage caused by improper use, or any indirect loss resulting from the use, misuse, or inability to use this product, are the responsibility of the user.

Battery and Charging Safety

• This product is only compatible with the charging base specifically provided by the manufacturer.
• Ensure a suitable power supply with reliable grounding is used. Otherwise, there is a risk of electric shock and other hazards.
• If a reliable grounded power supply is not available, have the system corrected by a professional electrician before using this product.
• Do not disassemble, repair, or modify the battery and charging base without authorization.
• If the charging base will not be used for a long time, unplug it from the power supply.
• Do not dispose of used batteries randomly. They must be handed over to a professional recycling facility for proper disposal.
• Do not use third-party batteries, chargers, charging cables, or charging docks.
• Do not clean the charging pins of the charging base with wet wipes, wet towels, or wet hands.
• Use this product in an environment where the power supply voltage matches that indicated on the base.
• When transporting the product, ensure it is turned off and unplugged, and it is recommended to use the original packaging box for packing.
• Do not use a power cord not included in the product package. Otherwise, smoke, overheating, or even fire may occur.
• If the usage area is subject to thunderstorms or unstable power supply, etc., it is recommended to take appropriate protective measures.
• It is forbidden to use this product with any type of voltage converter. Otherwise, the warranty becomes immediately void and potential hazards may occur.
• Do not use a damaged power cord. If the power cord is damaged (including breaks, fractures, etc.), stop use immediately and contact customer service.
• If the robot will not be used for a long time, fully charge it, turn it off, and store it in a cool, dry place. Charge it at least once a month to prevent battery over-discharge.

2. Product Overview

The Lefant M350 is a versatile robot vacuum and mop combo designed for efficient home cleaning. It features powerful suction, smart navigation, and convenient self-emptying capabilities.

Figure 2.1: What's in the Box - Robot, Self-Emptying Station, Mop Holder, User Manual, Dust Bag, Washable Mop Cloth, Disposable Dry Mop, Cleaning Tool, Side Brush, Power Cord, HEPA Filter, Filter Sponge.

Robot Components

Robot (Top View)

• Start/Pause Button
• Air Exhaust Outlet
• Dustbin and Water Tank
• Charging Electrode

Robot (Bottom View)

• Anti-Drop Sensor
• Dustbin and Water Tank Button
• Charging Electrode
• Side Brush
• Battery Cover
• Main Brush Cover Clip
• Drive Wheel
• Omnidirectional Wheel
• Main Brush
• Main Brush Cover

Robot (Front View)

• Anti-Collision Strip
• Spot Laser Sensor
• Obstacle Avoidance Sensor

Charging Station

• Air Exhaust Outlet
• Power Interface
• Top Cover of Dust Collection Chamber
• Infrared Signal Transmitter
• Charging Spring Contact
• Dust Collection Port Sealing Ring

Dustbin and Water Tank

• Dustbin
• Dustbin Latch
• Power Port
• Water Tank
• Sealing Cap

Other Accessories

• Power Cable
• Mop Cloth Holder (with Primary Filters, Filter Sponge, High-Efficiency Filter, Mop Cloth Adhesion Area)
• Side Brush
• Disposable Dust Collection Bag
• Disposable Dry Mop Cloth
• Cleaning Brush

3. Setup

Preparation for Use

• Before use, clear debris such as loose wires, hard and sharp objects (e.g., iron nails and glass) from the floor, and remove easily overturned, fragile, valuable, and potentially dangerous items to prevent the robot from getting tangled, blocked, dragged, or knocked over, causing personal injury or property damage.
• If using this product in an elevated environment (e.g., a duplex floor), ensure a robust physical barrier is installed to prevent personal injury or property damage from accidental falls.
• Before use, check that there is no standing water on the floor and do not wash the main unit with water to prevent the robot from suffering water penetration damage.

Tip: It is recommended to follow the robot throughout the first cleaning process and assist in resolving possible minor issues. After resolving these issues, the robot can perform subsequent cleanings autonomously. Do not allow the robot to vacuum hard or sharp objects (e.g., renovation debris, glass, iron nails), as this could scratch the robot and the floor.

Initial Setup Steps

1. Connect Power Cable: Insert the power cable firmly into the charging station.
2. Install Side Brush: Align and install the side brush onto the robot. You will hear a 'click' sound when it is correctly installed.
3. Remove Protective Films: Remove all protective films from both the robot and the charging station.
4. Position Charging Station: Place the charging station on a flat surface indoors. Ensure there are no obstacles within 0.5 meters (1.64 ft) on either side of the charging station and within 1.5 meters (4.92 ft) in front of it to prevent signal blockage. Do not place reflective objects like floor mirrors around the charging station.
5. Initial Charging: Press and hold the power button on the robot for 3 seconds to turn it on. Then, place it in front of the charging station (ensure the base station is powered). Quickly press the power button twice; the robot will automatically return to the base to charge. For daily use, keep the robot docked to the base to maintain optimal battery performance. During charging:
   • When battery level is below 50%: Purple light flashes rhythmically.
   • When battery level is above 50%: Blue light flashes rhythmically.

   Tip: If the robot is charged while turned off, it will automatically turn on during charging. If the robot cannot be turned on due to low battery, place it directly on the charging station for charging.

4. Operating Instructions

Button Functions and Indicators

• Press and hold for 3 seconds: Power On (Robot will automatically start charging).
• Quick press: Start/Pause cleaning.
• Quick press twice: Automatic recharging.
• Press and hold for 6 seconds: Enter network pairing mode. (You will hear two 'beep-beep' sounds, then release. The indicator light will flash, and the unit will enter network mode. Open the App to complete setup and pairing.)
• Press and hold for 12 seconds: Power Off.

Indicator Light Meanings

• Solid Blue Light: Cleaning / Paused / Standby / Network configuration complete.
• Breathing Purple/Blue Light: Charging initiated.
• Solid Red Light: Automatic return to charge (low battery).
• Solid Purple Light: Automatic return to charge (cleaning completed).
• Flashing Blue Light: Entering network configuration mode.
• Solid/Flashing Red Light: Machine fault.

Using the Mopping Function

1. Remove the dustbin and water tank.
2. Open the water tank's sealing cap, pour an appropriate amount of clean water, then close the silicone cap.
3. Reinsert the dustbin and water tank into the robot and press firmly until it reaches the bottom, ensuring the dustbin is correctly installed.
4. Align and attach the cleaning cloth to the mop cloth holder, ensuring the cloth is fully adhered to avoid affecting the cleaning effect.
5. Align the mop cloth holder with the clips on both sides of the robot's water tank bottom. When inserting, if you hear two clicks, it means the installation is correct.
6. Flip the robot over and quickly press the power button to start the mopping function.

Note: The robot cannot use the mopping function on carpets.

Figure 4.1: The M350 features a 7.9 cm ultra-slim body, allowing it to reach hard-to-reach areas like under sofas and beds.

Figure 4.2: The 190° PSD Precision Obstacle Detection system precisely identifies and avoids objects of different shapes, colors, and sizes for safer, smarter cleaning.

Figure 4.3: Carpet Detection & Auto Boost automatically boosts suction to maximum on carpets when the mop holder is not attached. It automatically avoids carpets when the mop holder is attached.

Figure 4.4: The Lefant app provides comprehensive control including Schedule Cleaning, Spot Cleaning, Do Not Disturb, No-Go Zones, Smart Mapping, Remote Control, Water Flow Adjustment, and Tap-to-Clean.

Figure 4.5: The M350 supports voice control via Amazon Alexa and Google Assistant, allowing you to easily command the robot to start, stop, or return to its charger.

5. Maintenance

Note: Before cleaning or maintaining the base station and the robot, ensure the base station is unplugged and the robot is turned off. The frequency of component replacement depends on actual usage conditions. If abnormal wear occurs, replace relevant parts promptly to avoid affecting cleaning performance.

Dustbin and Filters

1. Remove the dustbin and water tank.
2. Press the dustbin latch to open it and empty the internal waste.
3. Remove the primary filter, followed by the filter sponge and high-efficiency filter.
4. Clean the high-efficiency filter and filter sponge with a cleaning brush. Do not wash them with water.
5. The primary filter and dustbin can be thoroughly rinsed with clean water.
6. Dry the dustbin and primary filter for at least 24 hours, ensuring they are completely dry before reinserting them for use.

Mop Cloth

A dirty mop cloth will impair cleaning performance. Clean it promptly during or after use. The mop cloth is a consumable item. Replace it regularly based on wear conditions.

1. Remove the mop cloth holder.
2. Remove the mop cloth.
3. Wash the mop cloth.
4. Dry the mop cloth.

If using disposable dry wipes, they can be discarded after use.

Water Tank

1. Remove the dustbin and water tank.
2. Open the water filling cap.
3. Empty any residual water from the tank.
4. Close the filling cap and dry the surface, then clean the tank's power port with a soft, dry cloth.

Main Unit Sensors

Clean each main unit sensor with a soft, dry cloth, including:

• Spot Laser Sensor.
• Obstacle Avoidance Sensor.
• Anti-Drop Sensor (recommended to clean once a week to prevent dust from blocking and affecting the signal).

Side Brush

After cleaning the side brushes, you can reinstall them on the robot. Replace side brushes with new ones based on actual wear.

Main Brush

Open the main brush cover, then remove the main brush. Clean any tangled hair or threads around the main brush. After cleaning, reinsert the main brush into the robot and install it correctly.

Main Unit Components

These can be cleaned as needed based on actual usage conditions. When cleaning, use a soft, dry cloth to clean the universal wheels, drive wheels, and the robot's power port.

Charging Station

Do not rinse the charging station with water.

1. Clean the charging spring contact on the base station with a dry cloth to ensure smooth charging.
2. Clean the infrared signal transmitter on the base station with a dry cloth to prevent signal interference.
3. Clean the dust collection port on the base station with a dry cloth.
4. Open the top cover of the dust collection chamber, remove the disposable dust collection bag, and discard it. When removing the bag, do not allow waste to spill out and damage the dust collection chamber. Keep the chamber clean.
5. Insert the new disposable dust collection bag into the slot, ensuring it is fully inserted to prevent waste leakage and damage to the base station. After installation, flatten the dust collection bag, then install the top cover of the dust collection chamber in place to ensure a tight seal.

Figure 5.1: The self-emptying robot automatically collects debris into a 2.2L dust bag, offering up to 40 days of capacity.

6. Troubleshooting

When the robot encounters problems, its red indicator light will turn on or flash, and the beep will emit signals of different durations and frequencies. The table below summarizes the causes and corresponding solutions:

If the above methods do not resolve the problem, try the following: press and hold the start/pause button on the robot for 12 seconds. After hearing a long 'beep', turn it off, then press and hold for 3 seconds to restart.

7. Specifications

Robot Vacuum Cleaner

Self-Emptying Charging Station

8. User Tips

• WiFi Connection Issues: If you experience difficulty with WiFi pairing, ensure your home network is on the 2.4 GHz band. If problems persist, try restarting the robot by holding the power button for 12 seconds, then restarting it, and re-attempting network configuration via the app.
• Optimal Cleaning: For the best cleaning results, especially during the first few runs, monitor the robot to identify and clear any persistent obstacles or areas where it might get stuck.
• Regular Maintenance: Consistent cleaning of sensors, brushes, and the dustbin is crucial for maintaining the robot's efficiency and preventing common issues like reduced suction or navigation problems.
• Carpet Mopping: Remember that the robot will automatically avoid carpets when the mop holder is attached. If you need to vacuum carpets, ensure the mop holder is removed.

9. Warranty and Support

For any issues or further assistance, please contact Lefant customer support:

• Official Website: www.lefant.com
• Email Support:
  • North America: support.us@lefant.com
  • Europe: support.eu@lefant.com
  • Japan: support.jp@lefant.com
  • Other Countries: support@lefant.com

A detailed user manual in PDF format is also available for download. Please refer to the official website or the Lefant app for access to the latest documentation.