Operating Principle; Fault Analysis And Troubleshooting; Cleaning And Maintenance - deerma DEM-F628 Instruction Manual

Operating Principle

The Deerma humidifier atomizes water into ultrafine particles (1 m-5 m)
according to the principle that ultrasonic wave generates 1.7 million
times of high-frequency vibration per second and di uses the water
mist into air through its pneumatic device, so as to humidify air evenly.
The humidifier can maintain ideal room humidity and prevent static
electricity.

Cleaning and Maintenance

• Regularly clean the water tank, water slot and atomizer plate. Be sure
to power o and unplug the unit before cleaning.
• External cleaning of humidifier: wipe up the external surface with soft
and clean wet cloth under 40°C.
• DO NOT use the hard object for cleaning to avoid damage to parts.
• DO NOT clean with chemical detergent.
• Often replace the dated water in the water tank and maintain the
humidifier inside cleaning.
• Keep the internal humidifier dry for long-term nonuse.

Fault Analysis and Troubleshooting

Light is not lit without air and mist?
Cause analysis:
1. The power line plug is not connected;
2. The power line is damaged
3. If the current set humidity is lower than the ambient humidity, the
humidifier does not mist;
4. If the humidity has reached the set value, the humidifier does not
mist.
Handling method:
1. Check the power plug and connect it;
2. Adjust the humidity to a higher value until mist is on.
The power indicator light is lit with no air blown?
Cause analysis:
1. No water in the water tank;
2. Atomizer is damaged or fan is damaged;
Handling method:
1. Add water to the water tank
The sprayed mist is smelly
Cause analysis:
It is new product and the water in the water tank is not clean
Handling method:
Wash the water tank or replace the water
Less mist volume?
Cause analysis:
Too much scale on the atomizer plate or too much impurities in the
Handling method:
Clean the atomizer plate and replace with clean water