LG PH-U451WN User Guide

* Check whether the water is leaking. 
* Always wipe out any moisture around the water tank. 
*  When the water tank is assembled without the packing on the cap, water can easily 

spill over to cause electric shock and product damage.

*  If the water tank is not assembled correctly, “dr” will be shown on the front display. 

Check whether the water tank is correctly assembled.

* “dr” stands for door and is displayed when the front panel is open.

•  Do not use anything other than tap water. It is difficult for bacteria to grow in tap 

water because it is treated with chlorine. But it is easy for fungus or bacteria to 
grow in other types of water (Well water, purified water, mineral water etc.).

•  Do not use boiled water above 40˚C, aroma oil, chemical, contaminant and air 

freshener. (It can cause malfunction or failure.)

•  Because the water tank can fall over, always hold the water tank with two hands.

•  When inserting the water tank, check whether the tray humidifier filter and 

float are assembled correctly. If not, it can limit the performance of the 
humidifier or cause product failure. 

•  When loosening or tightening the water tank cap or when filling water to 

the water tank, hold the water tank with hand while loosening the part.