Central air conditioning maintenance purpose which: first: the purpose of the maintenance of the air conditioner water pump maintenance routine maintenance is to ensure that it is safe, reliable, high-performance, long-life operation of the necessary conditions, the most important is cleared up dirt . Second: Cleaning content often less is removed by suction panel and dirt on the case, but also use a soft cloth or a damp cloth to wipe the dust and dirt of large panels and chassis, central air-conditioning maintenance Never use gasoline, kerosene or other Liu cleaning chemical cleaning. Cleaning also includes wash clean the evaporator water pump filter Tangshan maintenance, keeping the evaporator, condenser clean water source heat pump maintenance oil changes, to maintain orderly cooling fins arranged gap flow. Third: central air conditioning maintenance failure causes the room air conditioner fails for many reasons, central air-conditioning maintenance can be divided into several categories: improper use, external damage spare parts; electrical system failure; cooling system failure. Shandong Durkin central air-conditioning Engineering Co., Ltd., in the central air-conditioning maintenance and cleaning for eight years, is committed to the international advanced air conditioning system service concepts into China, it is one of China's air conditioner market launch in the system service philosophy of the company. We firmly believe that the price of water source heat pump maintenance and cleaning, the experience is a valuable asset and most powerful core competencies air conditioning service, products and systems on a comprehensive and in-depth understanding, we will experience a deep rooted and extended to a wide range of areas of expertise .