Analyzing the basic method of household air-conditioner common faults are: see, hear, touch, test, analyze. 1, see: careful observation of the various components of the air conditioner work, focusing on observation of the three parts of the cooling system, electrical system, air system, determine whether they are working properly. 2, listen: listen to power on whether the air conditioner compressor operation sound is normal, abnormal noise, the fan is running without noise, the noise is too big. The air conditioner in operation, under normal circumstances a slight vibration, noise smaller, generally less 50DB. If the vibration and noise is too large, possible causes are: 3, touch: touch the air conditioner parts feel its cold, vibrations, etc., to help determine the nature and location of the fault. 4, test: In order to accurately determine the nature and location of the fault, often use Instrument check the measurement performance parameters and status of the air conditioner. Such as the use of refrigerant leak detector to check for leaks; use a multimeter to measure the power supply voltage, the connection terminals for ground current and operating current to meet the requirements, the computer-controlled air conditioner, but also measure the potential of each of the control points is normal and so on. 5. Analysis: After the results of the inspection of several means obtained, most can only reflect some local state. Is another link between the various parts of an air conditioner, influence each other, a failure phenomenon may have a variety of reasons, but one reason may also have a variety of failures. Therefore, the local factors to conduct a comprehensive comparative analysis, in order to fully and accurately determine the nature and location of the fault. US refrigeration normal hook, but users complained that the real reason for today's poor home maintenance a beauty KFR-23G / W hook, you said last summer the temperature to 18 not feel cool, had to find a master checked, the master say lack of freon, but can not find the reason. The inspection of this machine does not lack freon, refrigeration, heating effects are good. This air conditioning installed in the dressing room of the attic, attic area is very small, but four or five square feet. Packed in such a small room, cooling capacity is more than enough. Upon closer inspection, it found that cooling time is about twenty-three minutes, the outdoor unit stopped, and while they started. Run the twenty-three minutes and stopped, and this time the temperature looks about twenty three or four degrees, the temperature is set at eighteen I degree. Carefully consider Xuzhou scrap air conditioning, that should be a problem with the sensor, remove the two sensors measure the machine, all the way in the 10K, ambient temperature of 24 degrees, the resistance 10K is right. Consider for a moment Xuzhou brand air-conditioning offer, or the ambient temperature sensor to be replaced. Again test machine, the outdoor unit can work Xuzhou conditioning maintenance, observed about 10 minutes, it should be normal. At this recall last summer the United States have taken a 32-hook, users reflect the temperature set at 27 degrees, but can not reach 27 givers machine stopped. At that time, also for the ambient temperature sensor, users said to have been normal. It seems such a failure, the measuring sensor resistance is difficult to judge. Air conditioning and refrigeration operation panel of the indoor unit wind drops Analysis: If the air conditioner setting the cooling operation, while open wind deflector to swing up and down or run down the deflector angle-modulated long hair. When the ambient temperature is high or the air humidity, the air conditioner indoor air guide plates will produce heat outside cool down the formation of water droplets dripping. Proper use: air conditioning and refrigeration to adjust the angle of the wind deflector blowing horizontal position. After a period of indoor air conditioning and heating cold blow chance this is normal phenomenon for the outdoor unit defrost when defrosting the outdoor unit, indoor chance to stop working, the wind blowing heat temperature around 23 degrees, since the temperature difference between the outlet than the original Great, so the body feels cool breeze blowing, this is normal, you can use it. When the air conditioning and heating outdoor unit outdoor unit does not defrost find air conditioning and heating outdoor unit frosting frosting how many there are major relationship with the outdoor air humidity, in addition to the boot time is longer, the higher the set temperature, the air conditioner reach temperature stop operation will be relatively thick frost (especially been turned on at night, lower night temperatures, higher humidity frost will more) dehumidifying the air conditioner drains undrained this issue should be set up on the problem machine, dehumidifying Air conditioning needs to be set up in 16 degrees, and then select the dehumidification mode, of course, you can also turn on the heating effect of dehumidification, the need to look at the local weather conditions. Xuzhou air conditioning installation, Sheng Erda refrigeration, air conditioning provided by Xuzhou 圣尔达 Refrigeration Electrical Services Limited. Xuzhou air conditioning installation, Sheng Erda refrigeration, air conditioning Xuzhou 圣尔达 Refrigeration Electrical Services Limited (xzktw.com) this year introduced a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page, For the latest information, contact: Liu Wanhai.