Automatic pump self-priming pump head failure often occur with the normal operation of the motor but with a small amount of water or no water and chassis charged these two cases, then when the pump when such a failure, how to The following is about self-priming pump head failure treatment. Self-priming pump head failure treatment 1, self-priming pump head motor running but the water output is small or no water. This situation should first check the pump seal, check should first unplug the power plug, hand plug the suction port, the pump filled with water, the mouth stuck in the mouth forced inward blowing, observe whether the pump head leaks, leaking Where is the seal damage. Common parts of the faulty suction pad, outlet mat, impeller pad, maintenance should be replaced. If there is no full water phenomenon, mostly impeller damage, between the water chamber and the water chamber between the water within the septum wear, pump head water separated by grinding flat, impeller and the pump housing to increase the gap, etc., should replace the impeller and pump housing . Replace the wheel should pay attention to the complete removal of residual copper pump blades, so as not to damage the new impeller again. 2, the shell charged. Most of the water seal damage, water penetration into the motor shaft through the motor so that the motor insulation performance deterioration can be replaced by water seal, drying motor and other methods of repair. It should be noted that, because the water pump long-term contact with the water and open-air work, easily damp caused insulation performance deterioration, in order to ensure personal safety, electric self-priming pump should be grounded. The above is self-priming pump head failure treatment, I hope these contents of the daily use of the pump which is helpful. Read more: China Building Water Exhibition Pump Valve Tube Fittings Exhibition Water Expo Xiamen Maritime Exhibition Internet + Forum Yiwu Expo Industry Interconnection (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Duanhui (QQ / WeChat: 2355962924) http://beng.liuti.cn/ (service hotline: 400-6030-811)