Xuzhou 圣尔达 Refrigeration Electrical Services Limited one, no air conditioning and heating are three major reasons refrigeration cycle system, control system failure 1. insufficient refrigerant. Simple self-test can be performed to identify whether leakage of fluorine. 2. The four-way air valve train. Heat pump air conditioner to switch cooling and heating state by way valve. There should be involved in the heat exchange part of the refrigerant from the compressor outlet pipe directly at the four-way valve returns to the return pipe, leading to contribute to the heat exchange of the refrigerant to reduce, decrease heat exchange efficiency, so as to cause insufficient heating capacity. 3-way valve (also known as non-return valve) leak. High cooling system, a low pressure pressure drop, temperature of the outdoor heat exchanger rises, the heat from the outside to reduce the acquisition, resulting in insufficient heating capacity. Excessive pressure monitoring system is running, you will find the low side pressure rise, high and low pressure drop. 4. defrost controller failure. The air conditioning can not be promptly transferred to defrost running, occurs when heat pump system evaporator frost phenomenon, affecting the air conditioning and heating of the heat exchange efficiency, resulting in insufficient heating capacity, or even stop. Should focus on the observed temperature defrost device is misplaced, contact sticky side or bad, blower wheel slippage or duct obstruction, solenoid or starter relay failure. Xuzhou 圣尔达 Refrigeration Electrical Services Limited ☆ ventilation (there are two ways): one is through the ventilating device indoor outdoor air intake, and the second is the indoor air out outdoors, outdoor air into the room through the door gap air conditioning repair, in order to improve the indoor environment. ☆ inverter air conditioner is a recent development of a highly efficient, energy-efficient new air conditioners. It has changed through the power supply frequency inverter controller input conditioner compressors, compressor speed control continuous change in order to achieve continuous adjustment of output power conditioner that controls air conditioner cooling / heating capacity size. Because it does not like the fixed speed air conditioner compressor on and off like the opening stop, but continuous operation, so power consumption is greatly reduced, to save power. AC inverter and inverter air conditioner DC inverter two, comparatively speaking, the higher the DC inverter efficiency, more power. ☆ independent dehumidifier affect human comfort is a relative humidity of indoor air conditioning maintenance of telephone, and the relative humidity of the air and the moisture content is not only relevant, but also with the temperature. When the air conditioner during operation Xuzhou dehumidifiers, air conditioning repair Which is good, the fan runs at a lower speed, compressor working intermittently Gree air-conditioning repair phone, without reducing the effective removal of the moisture content of the air at the same time also allows room temperature or decreased slightly, so as to achieve the purpose of reducing the relative humidity of the air, to meet human comfort requirements. Xuzhou conditioning repair Which is good | Sheng Erda refrigeration (certified) | air 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.