Xuzhou 圣尔达 Refrigeration Electrical Services Ltd. fan does not run Cause 1: The master switch is bad exclude: master switch with a multimeter to measure the contact resistance, the resistance is too large or when the price is zero Xuzhou air conditioning maintenance, should be repaired or replaced Processing Cause 2: The fan motor coil damage exclusion: use a multimeter to check, replacement of the same size, the same reason the fan motor speed 3: between the fan motor and fan set screws loose exclusion: the set screw tightening Reason 4: Fan open or short circuit capacitor exclude: Check capacitors, suitable temperature to replace the same specification capacitor Xuzhou 圣尔达 Refrigeration Electrical Services Limited ☆ Under normal conditions the air conditioner is much suitable temperature is that people feel most comfortable and conducive to health temperature. On the air conditioner, the summer temperature is preferably in the 24-28 ℃; winter to 18-22 ℃ appropriate. According to the research results show that the human body at least 29 ℃, will feel the heat, sweat, and long-term living in the above 29 ℃ environment also have an impact on human life. Living below 16 ℃, will feel cold Xuzhou Daikin central air conditioning maintenance, but as long as attention to dress, can be resolved. Why ☆ air conditioner air conditioner work will produce noise in motors, compressors and fans, when the air conditioning running, various mechanical vibration, gas flow and liquid flow will produce noise. ☆ air conditioner under normal conditions of use refers to what conditions a) when the power supply voltage is within the allowable range of Xuzhou, central air conditioning repair, for 220V 10% in our air conditioning maintenance, not less than 198V, or not more than 242V;? 2) Power frequency in the range 50Hz ± 1Hz; 3) Operating ambient temperature within the specified range, such as -7 ~ 43 ℃; 4) Optional room air conditioner room size specifications and reasonable; 5) the use of air conditioners, air conditioning open doors and windows of the room is not very frequent. Xuzhou conditioning maintenance shift machine _ Sheng Erda refrigeration (certified) _ conditioning maintenance provided by Xuzhou 圣尔达 Refrigeration Electrical Services Limited. Xuzhou Sheng Erda Refrigeration Electrical Services Limited (xzktw.com) Xuzhou, Jiangsu, heat, refrigeration and air conditioning equipment leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. Sheng Erda leader in refrigeration staff warmly welcome all inquiries negotiations to create a better future Sheng Erda refrigeration.