Product Overview
The XIAOMI MIJIA M40S OMNI Robot Vacuum-Mop is an advanced cleaning device designed to automate your home cleaning tasks. It features powerful suction, intelligent navigation, and a self-cleaning dock for a comprehensive and hands-free cleaning experience. This manual provides essential information for setting up, operating, and maintaining your robot vacuum-mop.
The XIAOMI MIJIA M40S OMNI Robot Vacuum-Mop with its self-cleaning dock.
Key Features
- Powerful Cleaning Performance: 23,000Pa ultra-strong suction, dual-blade anti-tangle brush, and dual-arm edge cleaning for thorough dirt and debris removal.
- Smart Navigation & Avoidance: Adjustable LiDAR for cleaning under low furniture (8.8cm ultra-thin design) and triple laser sensors for precise obstacle avoidance.
- Advanced Self-Cleaning Dock: Features 80°C hot water mop washing, 2-hour fast hot air drying, dual-scrubbing base, and 75-day hands-free dust storage.
- Two Versatile Versions: Available in a Water Tank Version (manual refill) and an Ultra-Thin Auto Water Version (automatic refill/drain).
- Smart Home Integration: Compatible with Xiaomi HyperOS Connect and controllable via the Mi Home App for scheduling and advanced settings.
Package Contents
Please check the contents of your package against the list below. If any items are missing or damaged, contact customer support.
Water Tank Version (OV31CN)
- Robot Vacuum-Mop (x1)
- All-in-one Dock (x1) - includes dust bag, clean water tank, dirty water tank, and tray
- Dustbin (x1, pre-installed)
- Anti-tangle Brush (x1, pre-installed)
- Filter (x1, pre-installed)
- Mop Pads (x2, pre-attached)
- Brush Cover (x1)
- Ramp Extension (x1)
- Side Brush (x1)
- User Manual and other components
Accessories included with the Water Tank Version.
Ultra-Thin Auto Water Version (OV21CNRD)
- Robot Vacuum-Mop (x1)
- Auto Water Dock (x1) - includes dust bag and tray
- Dustbin (x1, pre-installed)
- Anti-tangle Brush (x1, pre-installed)
- Filter (x1, pre-installed)
- Mop Pads (x2, pre-attached)
- Water Installation Kit (x1)
- Side Brush (x1)
- User Manual and other components
Accessories included with the Auto Water Version.
Setup Guide
Choosing a Location for the Dock
Select a suitable location for the self-cleaning dock. Ensure it is placed on a hard, level surface (e.g., tiles, wood flooring) and not in areas prone to excessive humidity like non-waterproof bathrooms.
The two available dock versions: Water Tank (left) and Ultra-Thin Auto Water (right).
Water Tank Version Setup (OV31CN)
- Place the all-in-one dock in your desired location.
- Fill the clean water tank with water and, if desired, a compatible cleaning solution.
- Ensure the dirty water tank is empty and correctly installed.
- Connect the dock to a power outlet.
Ultra-Thin Auto Water Version Setup (OV21CNRD)
This version requires professional installation due to its direct connection to your home's water supply and drainage system.
- Water Supply: Connect to municipal tap water (0.14–0.8MPa pressure). Use the provided water valve adapter for standard faucets.
- Power: Connect to a 220V outlet with a waterproof cover. Ensure the outlet is within 1.5m of the dock.
- Drainage: Must connect to a floor drain or waste pipe. Wall drainage is not supported.
- Space Requirements (for built-in cabinet installation):
- Cabinet Height: >30cm
- Cabinet Depth: >46cm
- Cabinet Width: >47cm
- Clearance in front of the base: 1m x 47cm
- Threshold/Step Height:
- <2cm: No issues.
- 2–3.5cm: Requires a ramp accessory (included).
- >3.5cm: Not compatible.
Installation diagram for the Ultra-Thin Auto Water Version dock, detailing water, power, and space requirements.
Initial Charging
Place the robot onto the charging dock. Ensure the charging contacts align. The robot will automatically begin charging. Fully charge the robot before its first use.
Operating Instructions
Powering On/Off
- Power On: Press and hold the power button on the robot until the indicator lights up.
- Power Off: Press and hold the power button until the indicator turns off.
Connecting to Mi Home App
For full functionality and smart features, connect your robot vacuum-mop to the Mi Home App.
- Download the Mi Home App from your device's app store.
- Open the app and follow the on-screen instructions to add a new device.
- Select the XIAOMI MIJIA M40S from the list of available devices.
- Follow the app's prompts to connect the robot to your Wi-Fi network.
Control your robot vacuum-mop via the Mi Home App, including cleaning modes and suction power.
Cleaning Modes
The robot supports multiple cleaning modes, which can be selected via the Mi Home App:
- Sweep Only: For vacuuming dry debris.
- Mop Only: For wet mopping.
- Sweep and Mop: Simultaneous vacuuming and mopping.
- Custom Cleaning: Define specific areas or no-go zones.
Navigation and Obstacle Avoidance
The robot uses advanced LiDAR navigation and triple laser sensors to map your home and avoid obstacles. Its slim design and adjustable LiDAR allow it to clean effectively under furniture.
The robot's triple laser sensors enable precise obstacle avoidance.
Video Demonstration
A video demonstrating the XIAOMI MIJIA M40S robot vacuum-mop's cleaning capabilities, including obstacle avoidance, edge cleaning, and self-cleaning dock functions.
Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your robot vacuum-mop.
Self-Cleaning Dock Maintenance
- Mop Washing: The dock automatically washes the mop pads with 80°C hot water to dissolve stubborn stains.
- Mop Drying: After washing, the mop pads are dried with hot air in approximately 2 hours to prevent mildew and odors.
- Base Cleaning: The dual-scrubbing arms in the dock's base help prevent dirt buildup. Periodically inspect and clean the base if necessary.
- Dust Collection: The dock automatically empties the robot's dustbin into a sealed dust bag, providing up to 75 days of hands-free dust disposal. Replace the dust bag when full.
The self-cleaning dock automatically washes and dries mop pads and empties the robot's dustbin.
Robot Maintenance
- Anti-Tangle Brush: The dual-blade system actively cuts and collects hair to prevent tangles. Regularly check the brush for any remaining hair or debris and clean as needed.
- Filters: The HEPA filter should be cleaned periodically and replaced every 3-6 months depending on usage.
- Sensors: Wipe the robot's sensors (LiDAR, laser sensors) with a soft, dry cloth to ensure accurate navigation and obstacle avoidance.
- Side Brush: Check the side brush for wear and tear and replace if damaged.
The dual-blade anti-tangle brush actively cuts hair to prevent wrapping.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Robot not charging | Charging contacts not aligned; power cable disconnected; dock not powered. | Ensure robot is correctly docked. Check power cable connection to dock and outlet. Verify power outlet is functional. |
| Poor cleaning performance | Dustbin full; brush tangled; filter clogged; mop pads dirty. | Empty dustbin. Clean main brush and side brush. Clean or replace filter. Wash or replace mop pads. |
| Robot gets stuck frequently | Obstacles on floor; sensors dirty; robot operating in a complex environment. | Clear small objects, cables, and loose rugs from the cleaning path. Clean all sensors. Use the Mi Home App to set no-go zones for problematic areas. |
| Mop pads not washing/drying | Water tanks empty (Water Tank Version); water supply/drainage issues (Auto Water Version); dock malfunction. | For Water Tank Version, ensure clean water tank is full and dirty water tank is empty. For Auto Water Version, check water supply and drainage connections. Contact support if issues persist. |
| App connectivity issues | Wi-Fi signal weak; incorrect Wi-Fi password; robot too far from router. | Ensure strong Wi-Fi signal. Re-enter Wi-Fi password in the app. Move robot closer to the router or consider a Wi-Fi extender. |
Specifications
| Feature | Detail |
|---|---|
| Model | OV31CN (Water Tank Version), OV21CNRD (Ultra-Thin Auto Water Version) |
| Function | Mopping & Sweeping & Suction Type |
| Suction Power | 23,000Pa |
| Robot Dimensions (L x W x H) | 35 x 35 x 8.8 cm |
| Water Tank Dock Dimensions (Water Tank Version) | 47 x 36 x 57 cm |
| Auto Water Dock Dimensions (Ultra-Thin Auto Water Version) | 45 x 42 x 28 cm |
| Robot Net Weight | 3750g |
| Total Weight (Robot + Dock) | 6-10 kg (approx.) |
| Battery Type | Li-ion |
| Battery Capacity | 5200mAh |
| Battery Life | 1 hour 30 minutes - 2 hours |
| Rated Voltage (Robot) | 14.4V |
| Charging Voltage | 20V |
| Power (W) | 55W |
| Voltage (Dock Input) | 220 V / 50HZ |
| Dust Box Capacity | 1-2 L |
| Dust Storage Type | Paper Dust Bag |
| Filter Type | HEPA |
| Number of Operating Modes | 3-4 |
| Remote Control | Yes (via Mi Home App) |
| Certification | CB, CE |
User Tips
- Water Tank vs. Auto Water: If you prefer not to deal with plumbing, the Water Tank Version (OV31CN) allows for manual water refills and flexible dock placement. The Auto Water Version (OV21CNRD) offers full automation but requires specific installation.
- Smart Home Integration: While the robot integrates with Xiaomi HyperOS Connect and the Mi Home App, specific compatibility with other smart home ecosystems like Amazon Alexa is not explicitly stated. Refer to the Mi Home App for available integrations.
- Regular Filter Checks: To maintain strong suction and air quality, regularly check and clean the HEPA filter. Replace it as recommended in the maintenance schedule.
- Clear the Path: Before starting a cleaning cycle, quickly clear any small objects, cables, or toys from the floor to prevent the robot from getting stuck or damaging items.
Warranty and Support
XIAOMI provides a two-year official warranty for this electronic product. In case of any damage or malfunction, you may send the product to the nearest authorized repair center. Free replacement parts may be provided for non-human-induced damages. Damages caused by human factors or external forces may incur additional repair fees.
For further assistance, please refer to the official XIAOMI support channels or the Mi Home App for troubleshooting guides and contact information.
