1. Introduction
Thank you for choosing the CLEVAST EF8974 Dehumidifier. This manual provides important information regarding the safe operation, installation, maintenance, and troubleshooting of your new appliance. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Instructions
To reduce the risk of fire, electric shock, or injury, always follow these basic safety precautions:
- Read all instructions before using the appliance.
- Do not operate the dehumidifier with a damaged power cord or plug.
- Ensure the power outlet matches the voltage requirements of the unit.
- Do not block the air inlet or outlet. Maintain at least 8 inches (20 cm) clearance from walls or furniture.
- Always place the dehumidifier on a flat, stable surface to prevent tipping.
- Do not use the appliance in wet environments such as bathrooms with standing water, or outdoors.
- Unplug the unit before cleaning or performing any maintenance.
- Keep children and pets away from the appliance during operation.
- Do not insert objects into the air vents.
- If the unit emits unusual sounds, smells, or smoke, unplug it immediately and contact customer support.
3. Package Contents
Verify that all items are included in your package:
- 1 x CLEVAST EF8974 Dehumidifier
- 1 x 3.3 ft Drain Hose
- 1 x Power Cord
- 1 x User Manual (this document)
Image: The CLEVAST EF8974 Dehumidifier, its packaging, a 3.3 ft drain hose, and the user manual.
4. Product Overview
The CLEVAST EF8974 Dehumidifier is designed to remove excess moisture from indoor spaces up to 500 sq.ft. It features dual semiconductor technology for efficient moisture removal, smart humidity control, and quiet operation.
Image: An exploded view of the CLEVAST EF8974 Dehumidifier showing its internal components, including the fan, cooling fins, and water tank, highlighting its dual semiconductor dehumidification system.
Control Panel Features
Image: A close-up of the dehumidifier's top control panel, displaying humidity percentage, power, timer, sleep mode, air purification, and ambient light icons.
- Humidity Display: Shows current or target humidity level.
- Power Button: Turns the unit on/off.
- Timer Button: Sets auto shut-off time (8, 16, 24 hours).
- Sleep Mode Button: Activates quiet operation and turns off display lights.
- Air Purification Button: Activates UV-C light and negative ion functions.
- Ambient Light Button: Cycles through 7-color ambient light options or turns it off.
5. Setup
- Unpack the Dehumidifier: Carefully remove the unit and all accessories from the packaging.
- Choose a Location: Place the dehumidifier on a flat, stable surface in the desired room. Ensure there is at least 8 inches (20 cm) of space around the air inlet and outlet for proper airflow. Avoid placing it near heat sources or in direct sunlight.
- Power Connection: Plug the power cord into a grounded electrical outlet.
- Drainage Option: Decide between manual drainage (using the water tank) or continuous drainage (using the drain hose).
6. Operating Instructions
6.1 Basic Operation
- Power On/Off: Press the Power button on the control panel to turn the dehumidifier on or off. The humidity display will illuminate.
6.2 Smart Humidity Control
- The built-in humidity display shows the current room humidity.
- To set a target humidity level (40% to 90% RH), press the humidity control button (often indicated by a '%' or humidity icon) repeatedly until your desired level is displayed. The unit will automatically operate to maintain this level.
- Note: The humidity reading may vary by approximately ±5% RH due to environmental factors.
6.3 Drainage Options
Image: The CLEVAST EF8974 Dehumidifier shown with its removable 68 oz water tank and an illustration of the continuous drainage option using the included 3.3 ft drain hose.
Manual Drainage (Water Tank)
- The dehumidifier collects moisture into its 68 oz (2 liter) removable water tank.
- When the tank is full, the unit will automatically shut off, and an indicator light will illuminate.
- Carefully pull out the water tank, empty the collected water, and reinsert the tank firmly until it clicks into place. The unit will resume operation.
Continuous Drainage (Drain Hose)
- For continuous operation without emptying the tank, attach the included 3.3 ft drain hose to the continuous drain outlet on the back of the unit.
- Ensure the hose is sloped downwards to allow water to drain by gravity into a suitable receptacle (e.g., floor drain, large bucket).
- Do not allow the hose to be kinked or blocked, as this will prevent proper drainage.
6.4 Sleep Mode
Image: The CLEVAST EF8974 Dehumidifier placed on a bedside table in a bedroom, illustrating its quiet operation (under 30dB in Sleep Mode) while a person sleeps peacefully.
- Press the Sleep Mode button (moon icon) to activate.
- In Sleep Mode, the unit operates at a reduced fan speed for whisper-quiet operation (under 30dB) and all display lights turn off for undisturbed rest.
- Press the Sleep Mode button again to exit this mode.
6.5 Timer Function
- Press the Timer button (clock icon) to set the auto shut-off time.
- Each press cycles through 8, 16, or 24 hours. The unit will automatically turn off after the selected duration.
- To cancel the timer, press the Timer button until no timer setting is displayed.
6.6 Ambient Light
- Press the Ambient Light button (sun icon) to cycle through the 7-color ambient light options.
- Press repeatedly to select a color or turn the light off.
6.7 Air Purification Features
Image: The CLEVAST EF8974 Dehumidifier in a living room setting, highlighting its washable mesh filter, UV-C light, and negative ion functions for improved air quality.
- Press the Air Purification button (leaf icon) to activate the UV-C light and negative ion functions. These features work to help maintain fresher indoor air.
- Press the button again to deactivate.
7. Maintenance
7.1 Cleaning the Water Tank
- Empty the water tank regularly.
- Clean the tank with mild soap and warm water. Rinse thoroughly to prevent mold and mildew growth.
- Ensure the tank is completely dry before reinserting it into the unit.
7.2 Cleaning the Air Filter
- The dehumidifier is equipped with a washable mesh filter.
- Periodically check and clean the air filter to ensure optimal performance.
- To clean, remove the filter from the back of the unit. Wash it under running water with a soft brush if necessary.
- Allow the filter to air dry completely before placing it back into the dehumidifier.
7.3 Storage
- If storing the dehumidifier for an extended period, ensure the water tank is empty and clean.
- Clean the air filter.
- Store the unit in a cool, dry place, away from direct sunlight and extreme temperatures.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Dehumidifier does not turn on. | No power; Water tank full or not properly inserted. | Check power connection; Empty and reinsert water tank correctly. |
| No water collected or low dehumidification. | Room humidity too low; Temperature too low; Air filter blocked; Unit size too small for space; Air inlet/outlet blocked. | Ensure room humidity is above target; Operate in recommended temperature range; Clean air filter; Ensure proper clearance around unit. |
| Unit is noisy. | Unit not on a flat surface; Air filter dirty. | Place on a flat, stable surface; Clean air filter. |
| Water leaks from unit. | Water tank not properly inserted; Continuous drain hose kinked or blocked. | Reinsert water tank correctly; Check drain hose for kinks or blockages and ensure proper slope. |
If the problem persists after trying these solutions, please contact CLEVAST customer support.
9. Specifications
| Feature | Detail |
|---|---|
| Brand | CLEVAST |
| Model Name/Number | EF8974 |
| Dehumidification Capacity | Up to 23 oz (700ml) per day (at 86°F, 85% RH) |
| Coverage Area | Up to 500 sq.ft |
| Water Tank Capacity | 68 Fluid Ounces (approx. 2 Liters) |
| Humidity Control Range | 40% - 90% RH |
| Noise Level | Under 30dB (Sleep Mode), Under 40dB (Powerful Mode) |
| Power Consumption | 72 watts |
| Voltage | 120 Volts (AC) |
| Product Dimensions (D x W x H) | 4.57"D x 6.5"W x 9.25"H |
| Item Weight | 5 Pounds |
| Material | Acrylonitrile Butadiene Styrene (ABS), Polycarbonate (PC) |
| Special Features | Adjustable Humidity Control, Continuous Draining, Quiet Operation, Sleep Mode, Timer, UV-C Light, Negative Ion Function, 7-color Ambient Light, Auto Shut-Off |
10. Warranty and Support
This CLEVAST EF8974 Dehumidifier comes with a 1-Year Manufacturer's Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.
The warranty does not cover:
- Damage caused by accident, misuse, abuse, or improper operation.
- Damage caused by unauthorized repair or modification.
- Normal wear and tear.
For warranty claims or technical support, please contact CLEVAST customer service through the retailer where the product was purchased or visit the official CLEVAST website for contact information.
Please have your model number (EF8974) and proof of purchase ready when contacting support.
