User Manual For Kosmen KM-20N Dehumidifier

Kosmen KM-20N Dehumidifier User Manual

Product Functions

The Kosmen KM-20N dehumidifier offers the following key features:

Dehumidification

Effectively removes excess moisture and balances indoor humidity to a safe and comfortable level. Helps keep spaces dry, reducing mold growth and dampness.

Clothes Drying

Dries clothes using dehumidified airflow while maintaining balanced room humidity. Prevents re-absorption of moisture, ensuring clothes are dried gently without over-drying or fabric fading.

Negative Ion Air Purification

The device releases negative ions that help eliminate airborne dust and particles, keeping the air fresh and clean. 

In addition to its core functions, the dehumidifier also includes smart features such as a timer setting, full water tank alert, overload protection, and an automatic defrost function.

Key features Kosmen KM-20N

Wi-Fi Connection

Users can connect the device to Wi-Fi for easy remote control through the app. Once connected, you can customize settings, monitor ambient humidity, and set schedules conveniently via your smartphone.

How to Use

When powered on for the first time, the unit enters standby mode. Press the Power button to turn on the machine. The default mode is continuous dehumidification at low fan speed, and the indicator light will turn on. When restarted, the unit retains the previous humidity settings.

Power

Press the Power button to turn the unit ON/OFF.

Anion

Press the Anion button to activate/deactivate the negative ion air purification function.

Dry (Clothes Drying Mode)

Press the Dry button to activate/deactivate drying mode. In this mode, the machine runs continuously at maximum fan speed with enhanced warm airflow.

Note: In drying mode, fan speed and humidity levels cannot be adjusted and are fixed by the system.

Humidity

Press the Humidity button to set the desired humidity level. Choose "CO" for continuous dehumidification or select from 40% to 70% in 10% increments.

Fan Speed Setting

Press the Fan button to toggle between two fan speeds: High and Low.

Timer

Press the Timer button to set a delay timer. The timer indicator light will turn on. Adjust the timer from 1 to 24 hours. To cancel the timer, keep pressing the button until the screen displays “00.” After around eight blinks, the screen will return to showing current humidity, and the timer function will turn off automatically.

Wi-Fi

Hold the Wi-Fi button for 5 seconds. When the Wi-Fi indicator blinks continuously, the device is ready to be paired with the mobile app.

Wi-Fi Connection Instructions

1. Download the Smart Life or Tuya Smart app on your smartphone.
2. Scan the QR code on the machine using the app and follow the instructions to connect to your Wi-Fi network.
3. Important Notes:

• Ensure the dehumidifier, your phone, and the Wi-Fi router are close to each other during setup.
• Make sure your network is stable. The device only supports 2.4GHz Wi-Fi.
• Ensure the correct Wi-Fi password is entered.

4. Follow the app's step-by-step instructions to complete the pairing.

Control panel Kosmen KM-20N

Operation

How the Dehumidifier Works

• The compressor turns on after a 3-minute delay if the room humidity ≥ (set humidity + 5% RH).
• The compressor turns off if the room humidity < (set humidity - 5% RH).
• When the humidity is within ±5% RH of the set value, the machine maintains operation.
• If humidity drops, the fan stops after 3 minutes.
• When the water tank is full, the unit beeps 3 times, the full tank light turns on, and the unit stops. Empty the tank and reinstall it correctly to resume operation.

Defrost Function

• After 30 minutes of operation, if the coil temperature is ≤ -1°C for 3 seconds, the compressor stops and the fan runs to defrost.
• The defrost cycle ends when the coil temperature reaches ≥ 5°C for 3 minutes.

Indicator Lights

Water Level Float

Do not remove the float from the tank. The machine will not start if the float is removed.

Reinstalling the Water Tank

Use both hands to place the tank properly. If misaligned, the Full indicator will light up, and the machine will not start or may overflow during use.

Cleaning the Water Tank

If dirty, clean with cold or warm water. Do not use detergents, chemically treated cloths, gasoline, benzene, thinners, or solvents, as they may damage the tank.

Continuous Drainage

The unit is equipped with a drainage outlet for connecting a plastic hose (inner diameter 11mm).

Do not submerge the hose end in water or allow blockage, as this may cause back pressure and water leakage.

Usage Notes

• Place the unit upright on a flat surface, at least 20cm away from obstructions or heat sources.
• Do not block the air inlet or outlet.
• Keep windows and doors closed and avoid using fans during operation.
• Let the unit stand upright for at least 1 hour before plugging in after transport or tilting (e.g., during cleaning or moving).
• Ensure power supply matches specifications on the device label.
• Power off, unplug, and empty the water tank before moving the device.

Some notes when using the Kosmen KM-20N dehumidifier

• Check the power cord for damage before use.
• Never spray insecticides or flammable cleaners on the device.
• Children under 8 and people with physical/mental limitations should only use the device under supervision.
• Only certified professionals may disassemble or repair the device.

Error Code Table

Troubleshooting

Please do not worry if you encounter the following issues while using the dehumidifier. If the device is damaged or malfunctions, please contact us promptly for assistance.

Specifications