1. Introduction
This manual provides instructions for the installation, maintenance, and replacement of CONTIA brand accessories designed for the Xiaomi Mijia 1C and SKV4093GL robot vacuum-mop models. Regular replacement of these parts ensures optimal cleaning performance and extends the lifespan of your device.
2. Product Overview
The CONTIA replacement kit includes essential components for your robot vacuum-mop's cleaning system. These typically include:
- Roller Brush (Main Brush): Designed to agitate and sweep debris from floors.
- Side Brush: Sweeps debris from edges and corners into the main cleaning path.
- HEPA Filter: Captures fine dust particles and allergens, improving air quality.
- Mop Cloth: Used for wet mopping functions to clean hard floors.

Image 2.1: A CONTIA replacement roller brush, featuring orange and black bristles, designed for effective debris collection.
3. Installation Instructions
Before installing any replacement parts, ensure your robot vacuum-mop is powered off and disconnected from its charging base.
3.1. Replacing the Roller Brush
- Turn the robot vacuum-mop upside down.
- Locate the brush guard cover, usually secured by two tabs or screws.
- Press the tabs or unscrew the screws to remove the brush guard cover.
- Lift out the old roller brush.
- Clean any hair or debris from the brush compartment.
- Insert the new CONTIA roller brush, ensuring the ends align with the slots.
- Replace the brush guard cover and secure it.

Image 3.1: The underside of a compatible robot vacuum, illustrating the location of the main roller brush and the dustbin/filter compartment for replacement.
3.2. Replacing the Side Brush
- Turn the robot vacuum-mop upside down.
- Locate the side brush, typically held by a single screw.
- Use a screwdriver to remove the screw.
- Remove the old side brush.
- Align the new CONTIA side brush with the post and press it down.
- Secure it with the screw.
3.3. Replacing the HEPA Filter
- Open the top cover of the robot vacuum-mop to access the dustbin.
- Remove the dustbin from the robot.
- Open the dustbin cover and remove the old HEPA filter.
- Discard the old filter and insert the new CONTIA HEPA filter into the designated slot in the dustbin.
- Close the dustbin cover and reinsert the dustbin into the robot.
3.4. Attaching/Replacing the Mop Cloth
- Locate the water tank or mop attachment on your robot vacuum-mop.
- Remove the used mop cloth, if present.
- Attach the new CONTIA mop cloth to the designated Velcro strips or clips on the water tank/mop attachment.
- Ensure the cloth is securely fastened before reattaching the water tank/mop attachment to the robot.
4. Recommended Replacement Schedule
To maintain optimal cleaning performance and air quality, adhere to the following replacement schedule:
- Roller Brush: Every 6-12 months, or when visibly worn or damaged.
- Side Brush: Every 3-6 months, or when bristles are bent or missing.
- HEPA Filter: Every 3-6 months, or when visibly dirty or suction power decreases.
- Mop Cloth: Every 1-3 months, or when visibly worn. Wash after each use.
Note: Replacement frequency may vary based on usage frequency and environment (e.g., presence of pets, high dust levels).
5. Maintenance and Cleaning
Regular cleaning of your robot vacuum-mop's components, even replacement parts, will prolong their effectiveness.
- Roller Brush: Remove hair and debris tangled around the brush and its ends weekly.
- Side Brush: Remove tangled hair and debris from the bristles weekly.
- HEPA Filter: Tap the filter gently over a trash can to remove loose dust. Do not wash HEPA filters with water unless explicitly stated by the vacuum manufacturer.
- Mop Cloth: Remove and wash the mop cloth after each mopping cycle. Air dry completely before reattaching.
6. Troubleshooting
If your robot vacuum-mop is not performing optimally after replacing parts, consider the following:
- Reduced Suction: Check if the HEPA filter is clogged or incorrectly installed. Ensure the dustbin is empty.
- Poor Sweeping: Inspect the roller brush and side brushes for tangles or damage. Ensure they are installed correctly.
- Streaky Mopping: Ensure the mop cloth is clean and properly attached. Check if the water tank is filled (if applicable to your vacuum model).
- Unusual Noises: Remove and inspect all brushes for foreign objects or damage. Reinstall them securely.
If issues persist, refer to your robot vacuum-mop's original instruction manual or contact the vacuum manufacturer's support.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | CONTIA |
| Model Name (Part) | WJJ-11-13 |
| Compatible Devices | Xiaomi Mijia 1C, SKV4093GL Robot Vacuum-Mop |
| Filter Type | HEPA |
| Item Weight | 1.76 ounces |
| Package Dimensions | 1.18 x 0.79 x 0.39 inches |
8. Warranty and Support
For specific warranty information regarding CONTIA replacement parts, please refer to the product packaging or contact your retailer. For support related to the operation or repair of your Xiaomi Mijia 1C / SKV4093GL robot vacuum-mop, please consult the original manufacturer's documentation or customer service.





