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Beautiful water purifier water purification icon has been flashing, showing what is the meaning of E4? The machine has failed. it is recommended:I. check whether the wiring (whether the tube temperature sensor is normal) is in good contact with the plug-in on the circuit board, whether the tube temperature sensor is fixed firmly, and whether the indoor unit evaporates well, focus on checking whether the pipeline temperature detected by the tube temperature sensor reaches the cooling or heating temperature.Two, check whether the surface of the condenser is too dirty, and clean if it is too dirty.You can't solve it yourself. it's best to find after-sales or professional maintenance personnel.The water purifier is also called water purifier and filter. The core technology of the water purifier is the filter membrane in the filter element device. The main technology of the water purifier comes from two kinds of UF membrane and RO reverse osmosis membrane, it is a small water treatment equipment for deep pu

How about homemade home water filter? Self-made water filters are not very realistic,If necessary,You can choose the home filter valve,Install it on the tap of the hand.One change,Convenient and quick!Self-made water filter-what is the filter is an indispensable device on the pipeline of conveying media,It is usually installed in the inlet end of the pressure reducing valve, pressure relief valve, fixed water level valve, and other equipment of the square filter.After the filter has a filter cartridge of a certain size filter,Its impurities are blocked,When cleaning is needed,Just remove the removable cartridge,After processing, you can reload it,Therefore,It is extremely convenient to use and maintain.The filter consists of the cylinder, stainless steel filter screen, sewage discharge part, transmission device and electrical control part.Self-made water filter-how to make self-made water filter 1.Prepare materials, a pair of scissors, a piece of gauze, a pile of fine sand, charcoal, an empty plastic bottle