Fans routine maintenance and troubleshooting methods, whether any of the products, using the process requires care and maintenance in order to increase the life of the product and is not easy to fail. Daily suction fan maintenance needs to do the following: 1. Regularly check the fan motor, frame and other parts of the screws are loose 2. Regularly check the fan blade screws are loose 3. Check the fan motor is running well, it has slowed down, there are No buffer start, excessive noise and other phenomena has 4. Check the fan control switch is stable, maintain a good line 5. Check whether the voltage stability and maintaining good lines 6. Keep the fan clean DWT series roof fan features a specification in the form of multi-application range: according to different occasions and require the use of wind, pressure and noise, use the following three types of fans: A, Axial roof fan: Model for the DWT-I type, suitable for low pressure, high flow using the occasion . The maximum amount of wind centrifugal fan, as DWT-Ⅴ type fan Hao Yang according to user needs can also be designed to deliver two-way reversible exhaust, which has both positive and negative characteristics of the equivalent working conditions; B, centrifugal roof fan: Model for the DWT-Ⅱ type, DWT-Ⅲ type two kinds of patterns, suitable for smaller air volume and pressure requirements of the occasion; C, no motor turbine exhaust fan: Model for the DWT-Ⅳ type, is driven by a special indoor and outdoor air pressure arc shaped leaves with the axis of rotation to discharge the ideal energy-saving ventilation of indoor air. 2, high efficiency, low noise: The fan uses advanced CAD software, designed by the multi-objective optimization. DWT-Ⅰ series machines No. 12 # -24 # altogether eight kinds of machine No. fan blower, by changing the speed, angle and leaf-type approach Hao Yang maximum pressure centrifugal fan, the expansion of the range of performance parameters to meet different working conditions need to reach fans and systems area with, in order to facilitate energy saving and noise reduction; 3, smooth operation and long life: small moment of inertia of the fan, high precision dynamic smooth, smooth what maximum pressure centrifugal blower fan running, and the performance of companies within the requirements of modern standards are higher than the fan industry standards to ensure that the fan at the leading position in the peer; 4, wide application: This fan can be used according to requirements made into explosion-proof type, suitable for flammable, explosive and corrosive gas forced air ventilation occasions; 5, the products on many occasions by the provinces and Technical Supervision qualified, users can be assured. Francis fan winds of phone manufacturers, Hao Yang air conditioning equipment (certified), Yang Hao Datong fan from Texas Air Conditioning Equipment Limited. Air Conditioning Equipment Co., Texas Hao Yang (www.dzapjt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Hao Yang air conditioning equipment in leadership with the staff warmly welcome all inquiries negotiations to create Hao Yang air conditioning equipment a better future.