1. Introduction
Thank you for choosing the Coibeu WKJS4L Smart Ultrasonic Air Humidifier and Aroma Diffuser. This device is designed to improve your indoor air quality by adding moisture and can also function as an aroma diffuser with essential oils. It features smart controls via a mobile application, a large 4-liter capacity, and quiet operation. Please read this manual thoroughly before use to ensure proper operation and maintenance.
2. Safety Information
To ensure safe operation, please observe the following precautions:
- Always place the humidifier on a firm, flat, waterproof surface away from direct sunlight and heat sources.
- Do not place the humidifier near electronic devices or furniture that may be damaged by moisture.
- Use only clean, cool tap water. Distilled or demineralized water is recommended to prevent mineral buildup.
- Do not add water directly into the mist outlet. Always fill the water tank as instructed.
- Unplug the device before filling, cleaning, or moving it.
- Keep the humidifier out of reach of children and pets.
- Do not block the air inlet or mist outlet.
- If the device emits an unusual smell or sound, or if it stops working, unplug it immediately and contact support.
- The device features automatic dry-burn protection, which will shut off the unit if the water level is too low. Do not attempt to bypass this safety feature.
3. Package Contents
Please check the box for the following items:
- Coibeu WKJS4L Smart Ultrasonic Air Humidifier
- Power Adapter
- User Manual
- Cleaning Brush
Image: The Coibeu WKJS4L humidifier shown next to its retail packaging, which includes the model number and key features.
4. Product Overview
The Coibeu WKJS4L humidifier is designed for efficient and quiet operation, featuring a transparent water tank and a control panel on the base.
Image: Front view of the Coibeu WKJS4L Smart Ultrasonic Air Humidifier, showcasing its sleek design with a transparent water tank and control panel.
Image: A diagram illustrating the dimensions (17cm width, 28cm height) and key specifications of the Coibeu WKJS4L humidifier, including voltage, power, noise level, and capacity.
5. Setup
5.1 Filling the Water Tank
- Ensure the humidifier is unplugged.
- Remove the top cover of the water tank.
- Pour clean, cool tap water directly into the tank, up to the maximum fill line. The tank has a 4-liter capacity.
- Replace the top cover securely.
Image: A hand pouring water into the top opening of the humidifier, demonstrating the easy top-fill design for convenient refilling.
5.2 Power Connection
Connect the power adapter to the humidifier and then plug it into a suitable electrical outlet (100-240V, 50-60Hz).
5.3 App Connection (Smart Control)
The Coibeu WKJS4L can be controlled via a mobile application. Follow these steps to connect your device:
- Download the 'Tuya Smart' app from your mobile device's app store (available on Google Play and Apple App Store).
- Register or log in to your account.
- Ensure your humidifier is plugged in and powered on.
- In the app, tap 'Add Device' or the '+' icon. The app should automatically discover the humidifier. If not, select it manually from the list of devices.
- Follow the on-screen prompts to connect the humidifier to your Wi-Fi network. You will need to enter your Wi-Fi password.
- Once connected, you can control the humidifier remotely via the app.
Image: A smartphone displaying the control interface for the Coibeu humidifier, showing options for mist level and timer settings, with the humidifier visible in the background.
6. Operation
6.1 Basic Operation (Touch Panel)
The humidifier features a smart touch panel on its base:
- Power Button: Press to turn the humidifier on or off.
- Mist Button: Press to cycle through three mist levels (low, medium, high).
- Timer Button: Press to set a timer for automatic shut-off.
- Wi-Fi Indicator: Shows the connection status to your Wi-Fi network.
Image: A close-up of the humidifier's base, highlighting the smart touch screen with icons for Wi-Fi, timer, mist level, and power, indicating its intuitive controls.
6.2 Mist Levels
The humidifier offers three mist levels to suit your needs, covering an area of 30-40m²:
- Low Mist: 150-200 ml/H
- Medium Mist: 200-250 ml/H
- High Mist: 250-300 ml/H
Image: Three humidifiers side-by-side, illustrating the different mist outputs for low, medium, and high settings, with corresponding mist volume indicators.
6.3 360° Rotating Mist Outlet
The mist outlet can be rotated 360 degrees, allowing you to direct the mist in any desired direction for optimal humidification.
Image: A close-up of the humidifier's top, showing the mist nozzle with arrows indicating its 360-degree rotation capability.
6.4 Ambient Lighting
The humidifier features ambient lighting that can be controlled via the mobile app. You can choose from various colors or a gradual color change mode to create a relaxing atmosphere.
6.5 Aroma Diffusion
To use the aroma diffusion feature:
- Locate the essential oil tray, usually a small compartment near the base or under the water tank.
- Add a few drops of your favorite essential oil onto the aroma pad (if included) or directly into the designated essential oil compartment.
- Do not add essential oils directly into the water tank, as this can damage the unit.
7. Maintenance
Regular cleaning is essential for optimal performance and hygiene.
7.1 Daily Maintenance
- Empty the water tank and wipe it dry if the humidifier will not be used for an extended period.
7.2 Weekly Cleaning
- Unplug the humidifier.
- Remove the water tank and empty any remaining water.
- Clean the water tank with a soft brush and mild detergent. Rinse thoroughly to remove any residue.
- Wipe the base and ultrasonic transducer with a soft, damp cloth. Do not immerse the base in water.
- For mineral buildup, use a descaling solution or a mixture of white vinegar and water. Let it soak for 15-20 minutes, then scrub gently and rinse.
- Ensure all parts are completely dry before reassembling.
The wide-mouth lid and large water tank design facilitate easy cleaning.
8. Troubleshooting
If you encounter any issues with your Coibeu WKJS4L humidifier, please refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No mist or low mist output | Low water level; Mineral buildup on transducer; Mist outlet blocked. | Refill water tank; Clean the ultrasonic transducer; Check and clear mist outlet. |
| Unusual odor | Stagnant water; Dirty water tank. | Empty and clean the water tank; Use fresh water daily. |
| Humidifier not turning on | Not plugged in; Power outage; Water tank not properly seated; Dry-burn protection activated. | Check power connection; Ensure water tank is correctly placed; Refill water tank. |
| Wi-Fi connection issues | Incorrect Wi-Fi password; Router too far; 5GHz Wi-Fi network (device supports 2.4GHz only). | Re-enter Wi-Fi password; Move humidifier closer to router; Ensure you are connecting to a 2.4GHz network. |
If the problem persists, please contact Coibeu customer support for assistance.
9. Specifications
| Feature | Specification |
|---|---|
| Model | WKJS4L |
| Brand | Coibeu |
| Voltage | 100-240V 50-60Hz |
| Power | 25 Watts |
| Noise Level | ≤35 Decibels |
| Water Tank Capacity | 4 Liters |
| Mist Output | 150-300 ml/hour (3 levels) |
| Misting Time | Up to 13 hours |
| Coverage Area | 30-40 m² |
| Product Dimensions | 17 x 17 x 28 cm |
| Material | Plastic |
| Special Features | Adjustable speed control, Remote control (App), Automatic shut-off, Aroma diffuser, Filter replacement indicator (if applicable), Ambient lighting. |
10. Warranty and Support
Coibeu products are manufactured to high-quality standards. For warranty information, please refer to the documentation included with your purchase or contact Coibeu customer support. If you require technical assistance or have questions regarding your humidifier, please reach out to our support team through the contact information provided on the Coibeu website or your purchase platform.