Xuzhou 圣尔达 Refrigeration Electrical Services Ltd 1) around the outside of the connected machine joints tighten (fine), with a special wrench to loosen the valve stem off a ring (2) heard outside the machine connector (coarse) creak sound, about 30 seconds, with a sheet hand tighten the (crude) connector (3) Release the (crude) worn only on the tube valve stem (4) to completely release the (fine) tube off the valve stem. This temporal withered vented end (5) Finally, leak detergent, carefully observe every joint without bubbles emerge, verify that the system is indeed no leaks after Xuzhou air conditioning repair prices, tighten the valve cap insurance, you can boot test run (6) such as air conditioning cooling effect is not good running air conditioning repair, indoor air outlet temperature does not meet the requirements of Xuzhou air conditioning maintenance and fluoride, consider supplementing the freon refrigerant. (7) the refrigerant charge is completed, the cause of this shift work all over. Xuzhou 圣尔达 Refrigeration Electrical Services Limited ☆ conditioner retreat or quality problems arise which can be changed in accordance with national regulations: performance failure occurred within 7 days retreat, can be changed, repairable; there are performance problems can be changed within 15 days, repairable ; in the "three guarantees" the validity of the security or performance troubleshooting installation twice Xuzhou wedding dresses, still not working, retreat, can be changed. Product performance problems is the product does not comply with safety and health requirements, endanger the existence of personal and property safety of unreasonable; or do not have the product should have the property; or do not meet the quality of express. What is the difference ☆ "warranty period" and "Warranty Period" to "repair period" is based on the national "Three Guarantees", when the repair period, in line with the "three guarantees" the condition of product repair free of charge. "Warranty period" is the period of time to ensure product repair, which is necessary to fulfill the obligations of producers. Xuzhou wedding dresses _ Sheng Erda installing 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.