The failure of the ceiling air -conditioning processing unit may have the following: 1. Sound abnormality: there may be debris from the impeller, snail shell, bearing, etc.; the impeller is eccentric or loose;Exture the sound of communication; the belt is too tight or too loose; the axis bending deformation; the axis or balancing block loosening and other factors.The solution is to eliminate the debris, adjust the impeller or contact the seller, adjust the snail shell or contact the seller, re -fix it, fix the wiring or supply three -phase electricity, adjust the tightness of the belt, and change the shaft or a shaft or balance block.2. Air conditioning leakage: It may be due to improper installation of the body, such as the indoor machine tilt, the direction of the pipeline is too high; the drainage pipe is poor, such as loose drainage pipes or bending into a wave shape, resulting in poor drainage.The insulation material on the road is too poor or too thin, causing the refrigerant in the tube to produce knotting when passing through; or the outdoor heat exchanger dripping water, which may be because the heat exchanger is filled with dust.Drops of water droplets in the middle of the device.3. Concrete water overflow: The problem of condensed water overflow may appear in the ceiling air -conditioning unit, which brings inconvenience and device damage to users.4. Abnormal operation: You need to first determine what the failure causes the unit to run abnormally, clear the principle of the failure, and analyze it based on the fault on -site appearance.It may be necessary to detect the running parameters and further carefully observe the status of the crew (see it), and verify that the reason is correct.After that, the various systems (such as the load estimation system, the electronic control system, the refrigeration system, the system, the water pipeline system, the condensed water system, the condensing water system) were ruled out, and finally it was determined that a certain parts were damaged.