1. Introduction
This manual provides essential information for the proper installation, function, and care of your new original water tank sensor. This sensor is a critical component for the mopping function of your Xiaomi Mi Robot Vacuum Mop 2 or Mijia Sweeping Vacuum Cleaner 2C, ensuring accurate water level detection and efficient operation.
Figure 1: Water Tank Sensor
2. Safety Information
- Always disconnect the robot vacuum from its power source before performing any maintenance or part replacement.
- Handle electronic components with care to avoid damage from static electricity.
- If you are unsure about any step, consult a qualified technician or the robot vacuum's main service manual.
3. Setup and Installation
This water tank sensor is a replacement part. Installation requires accessing the internal components of your robot vacuum. Please follow these general steps, referring to your robot vacuum's specific disassembly instructions if available.
- Power Off: Ensure the robot vacuum is turned off and disconnected from its charging dock and any power source.
- Access: Carefully disassemble the robot vacuum to gain access to the water tank sensor location. This typically involves removing the main brush, side brush, dustbin, water tank, and potentially the top cover and internal panels.
- Locate Old Sensor: Identify the existing water tank sensor. It is usually a small circuit board with wires connected to a connector.
- Disconnect Old Sensor: Gently disconnect the wiring harness from the old sensor. Note the orientation of the connector.
- Remove Old Sensor: Carefully remove the old sensor from its mounting position.
- Install New Sensor: Place the new water tank sensor into the mounting position.
- Connect New Sensor: Connect the wiring harness to the new sensor, ensuring it is securely seated and in the correct orientation.
- Reassemble: Carefully reassemble the robot vacuum, ensuring all components are correctly placed and secured.
- Test: Place the robot on its charging dock and power it on. Fill the water tank and initiate a mopping cycle to verify proper sensor function.
Figure 2: Overall view of the water tank sensor with its wiring.
Figure 3: Detail of the sensor's electrical connector.
Figure 4: Close-up view of the sensor board.
Figure 5: Rear view of the sensor board, showing model/version markings (HALL-WATER_V1_0).
4. Operating Principles
The water tank sensor is a Hall effect sensor designed to detect the presence or absence of water in the robot vacuum's water tank. It works by sensing changes in a magnetic field, which are influenced by the water level. When the water level drops below a certain point, the sensor signals the robot's main control unit, which can then trigger alerts or adjust mopping operations.
5. Maintenance
To ensure the longevity and accurate function of your water tank sensor:
- Regular Inspection: Periodically inspect the sensor area for any debris, dust, or water residue that might interfere with its operation.
- Cleaning: If necessary, gently clean the sensor and its immediate surroundings with a dry, soft cloth. Avoid using harsh chemicals or abrasive materials.
- Water Quality: Using clean, filtered water in the tank can help prevent mineral buildup that might affect sensor performance over time.
6. Troubleshooting
If you experience issues with your water tank sensor after replacement, consider the following:
- No Water Detected / Mop Not Working:
- Ensure the water tank is properly filled and inserted.
- Check the sensor's wiring connection to ensure it is secure and correctly oriented.
- Inspect the sensor for any visible damage or obstructions.
- Constant Water Detected (even when empty):
- Verify that the sensor area is completely dry and free of moisture.
- Recheck the wiring connection.
- Error Messages: If the robot displays specific error codes related to the water tank or mopping function, consult your robot vacuum's main user manual for their meaning and recommended actions.
If troubleshooting steps do not resolve the issue, the sensor may be faulty, or there might be an issue with the robot vacuum's main control board. Contact customer support for further assistance.
7. Specifications
| Attribute | Value |
|---|---|
| Product Type | Water Tank Sensor (Vacuum Cleaner Part) |
| Model Number (Sensor) | HALL-WATER_V1_0 (20201126) |
| Compatibility | Xiaomi Mi Robot Vacuum Mop 2 (STYTJ03ZHM), Mijia Sweeping Vacuum Cleaner 2C |
| Authenticity | Original |
| Material | Plastic, Electronic Components |
| Color | Black |
| Condition | New |
Note: Product color may vary slightly due to photographic lighting sources or your monitor settings. Measurements may have a slight error margin of +/- 1-3 cm.
8. User Tips
No specific user tips from reviews or Q&A were available for this product. However, general advice for replacement parts includes:
- Before purchasing, verify the compatibility of the sensor with your specific robot vacuum model number.
- Take photos during disassembly to aid in reassembly.
- Keep small screws and parts organized during the replacement process.
9. Warranty and Support
For information regarding warranty coverage, returns, or technical support, please refer to the seller's policies or contact the seller directly. Keep your purchase receipt as proof of purchase.
