Household Dehumidifier Kosmen Maintenance Guide

1. Maintenance Instructions

Dehumidifiers should be maintained regularly to ensure optimal performance and durability. Below are the basic maintenance steps for household dehumidifiers:

Note: Turn off the unit and unplug it before performing any cleaning to ensure safety.

Maintenance Steps:

Step 1: Clean the water tank

• Empty all the water from the tank.
•  Rinse the tank with warm water and mild soap.
• Let it air dry or wipe it dry completely before reinstalling it into the unit.

Step 2: Clean the filters

•  Remove the filter from the unit.
• Gently vacuum or rinse with water (only applicable for pre-filters; HEPA and activated carbon filters in the KM-30N model are not washable).
• Let the filter dry completely before reinstalling.

Note: Clean the filter twice a month to ensure effective dehumidification and energy efficiency.

Step 3: Wipe the exterior surface of the unit

• Use a soft, damp cloth to clean off dust and dirt.
• Avoid using strong detergents or flammable chemicals.

Step 4: Check the drainage hose (if applicable)

• Ensure the hose is not clogged or leaking.

Recommended Frequency: Maintenance should be performed every 1–3 months or more frequently if the unit operates in a dusty environment.

Home Dehumidifier Maintenance Guide in Just 4 Easy Steps

2. Regular Maintenance Check

To maintain the performance and lifespan of the dehumidifier, it is important to regularly inspect and replace components either periodically or when signs of damage appear:

• Filter: Clean the pre-filter regularly. For the Kosmen KM-30N, the HEPA H13 filter and activated carbon filter are non-reusable and should be replaced every 6–12 months or when there are signs of discoloration, unpleasant odors, or reduced dehumidification performance.

• Power Cord: Inspect frequently. Replace immediately if the cord is cracked, frayed, or exposed.

• Water Tank: Replace if cracks or water leaks are detected.

• Fan: If unusual noises occur, check and replace the fan or contact Kosmen for assistance.

• Heat Exchange Unit: If the machine does not dehumidify effectively, a technician should inspect and repair this component.

Note: If you are unsure about inspecting or replacing any parts, please contact the Kosmen service center or a qualified technician to ensure safety.

3. Important Notes – Please Read Carefully Before Using the Device

Installation Notes

• Place the machine in an upright position on a flat, stable surface.

• Ensure a clearance of ≥ 30cm from walls, heat-emitting objects, or flammable materials.

• Do not block the air intake and air outlet vents.

Usage Notes

• Only use the machine in household environments. Do not use in vehicles, boats, wardrobes, or small enclosed spaces.

• If the machine has been tilted or laid flat (during cleaning or transport), let it stand upright for at least 1 hour before plugging it back in.

• Use the correct power source. Avoid overloading to prevent fire hazards.

• Do not drop the machine or allow it to come into contact with water or flammable substances.

• Do not turn the machine on/off by unplugging it—always use the control panel to operate.

• Before moving the machine, power it off, unplug it, and empty the water tank.

• Do not spray insecticides or flammable cleaners on the machine's surface

4. Error Code Explanation

5. Troubleshooting Guide

If you encounter any problems during use, please contact Kosmen for expert support, maintenance, and care to ensure optimal performance and extend the lifespan of your dehumidifier.

Contact Support:

• Head Office: No. 27B, Street No.12, Hiep Binh Ward, Ho Chi Minh City
• Hanoi Office: NV 4.7, Cau Buou New Urban Area, Thanh Liet Ward, Hanoi City
• Da Nang Office: No. 41 Vo An Ninh Street, Hoa Xuan Ward, Da Nang City
• Da Lat Office: No. 38/7 Ba Thang Hai Alley, Xuan Huong Ward - Da Lat, Lam Dong Province
• Hotlines: Northern Region: 0766 899 799 - Southern Region: 0965 210 874 - Central Highlands: 0961 061 076 - 0935 696 695 (Central Vietnam)
• Website: kosmen.com.vn