Dew HU1A-430C Maintenance and cleaning

MAINTENANCE AND CLEANING
In case the water is hard, meaning the water contains too much calcium and
magnesium, it can cause a “white powder” problem and leave heavy scales on the
surface of water basin, transducer, and inner surface of the water tank. Scales on the
surface of transducer will let the humidifier work improperly.
Empty the tank and refill every third day. Before refilling, clean it with fresh tap water.
Remove any scale, deposits, or film that has formed on the sides of the tank or on
interior surfaces and wipe all surfaces dry.
Empty and clean the humidifier before storage. Clean the humidifier before next use.
Use cold boiled water, or distilled water.

Clean the transducer, water tank and basin every three days.
• Change the water in the water tank more often to keep it fresh.
• Make sure to pour out water from the water tank and dry everything before
storage.

HOW TO CLEAN THE TRANSDUCER
• Clean with clean water of citric acid if there is scale in it.
• Brush off the scale from the surface.
• Rinse the transducer with clean water.

HOW TO CLEAN THE BASIN
• Clean the water basin with a soft cloth or use citric acid if there is scale in it.
• If the scale covers the security switch, drop some citric acid on it and let it sit for
2-5 minutes on the scale and clean it with a brush.
• Rinse the water tank with clean water.

HOW TO CLEAN THE CERAMIC FILTER
• Clean and activate the ceramic filter after using 1000L water. Depending on the
water quality. If the ceramic filter is dirty it needs to be cleaned more frequently.
• It can be dipped into vinegar for 5 minutes, then rinse it with water.
• Put the filter under the sun for 4-6 hours to dry, or overnight.