There are air conditioning sound normal operation: A, air conditioning central air conditioning running wind Xuzhou transformation phone, then you can adjust the appropriate speed in order to improve the appropriate wind B, air-conditioning plastic parts heating or cooling of "crackling" sound, this Sound can not be completely avoided, only a corresponding improvement in C by adjusting the degree or the position of tight housing, rapid vaporization of the liquefied refrigerant voice in the pipeline, D, resonant sound coming into contact with other objects and so on. Haier inverter air conditioner KFR-120LW / K2SDY poor heating effect Analysis:-site inspection of the air conditioning and heating can, but remote control can not control the wind speed, the outlet temperature reached 35 degrees, try to convert air-conditioning mode, the cooling wind speed can be as high low. adjustment, it is possible to determine the fan motor is good. You can doubt the indoor pipe temperature sensor is broken. Results: Replace the indoor pipe temperature sensor, the test machine is normal. Experience: temperature sensor in the air conditioning plays a very important role, it can cause a lot of bad fault, in this case, the air conditioning and heating, due to anti-cold air function, room temperature sensor fan feel more than 25 degrees to a low wind central air-conditioning repair parts operation in Xuzhou, reaching more than 30 degrees to set the wind speed run, more than find fault first wind speed is low, and the air temperature is high, it is necessary to check the fan is normal. When determining the normal fan, you can not check suspect temperature sensor, the fan does not cause the remote control to set the wind speed in order to operate, so replace the inner tube temperature sensor. In the fixed-frequency air in suspected bad sensor can be placed in a forced air-conditioning refrigeration state, such as air conditioners can be operated, and the current normal central air conditioning, generally considered bad sensor. Air conditioning filter is dirty, how clean? In addition to filters, air conditioning inside the fins also need to be cleaned, but the two slightly different cleaning methods. First you have to prepare a bottle of air conditioning disinfectant, recommended home security, the use of simple, clean and works well. Then turn off the air conditioner, the filter removed, directly on the water wash clean, dry Xuzhou central air conditioning maintenance, and then open the home security, shake a few times, and then the high-pressure nozzle against the air conditioning inside the heat sink sprayed directly again, filters put back, boot 15 minutes refrigeration, air conditioning, to clean finished, you can go home and try to be cleaned once look good wash after the air conditioning blowing out wind and leaves a faint fragrance of shares. By the way, do not wash too often air conditioning, cleaning air conditioning disinfectant once a month is enough, as long as the water for several minutes each time to get. Central air-conditioning | Sheng Erda refrigeration | Xuzhou central air conditioning maintenance provided by Xuzhou 圣尔达 Refrigeration Electrical Services Limited. Xuzhou 圣尔达 Refrigeration Electrical Services Limited (xzktw.com) strong, credible, Xuzhou in Jiangsu Province of heat, refrigeration and air conditioning equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Sheng Erda refrigeration into the brilliant and you work for a better future!