Unable to start should first check the power supply situation: header is solid; the switch contact is tight; the fuse is blown; whether the lack of a three-phase power supply equal. If open circuit, poor contact, fuse, phase custom double-suction centrifugal pump, should identify the reasons and timely repair. Second, check whether the pump itself mechanical failure, common causes are: packing too tight or between the impeller and the pump is clogged debris stuck; shaft, bearings, reducing the drain ring rusted; severe bending the shaft. Remedy: relax filler SH double-suction centrifugal pumps, dredge flume; disassemble the pump to clear debris, rust; remove the shaft correction or replacement of the pump shaft. Click overheated power aspects of reasons: high or low voltage, in particular load, if the voltage fluctuation range should be in addition to the rating of + 10% to -5% will cause the motor to overheat; power three-phase voltage asymmetry, power Three-phase voltage phase imbalance exceeds 5%, will lead the winding overheating; missing running, experience has shown that agricultural motor was burned over 85 percent is caused due to missing running, the response of the motor phase protection devices installed. Custom-made double-suction centrifugal pump, Jilin double suction centrifugal pumps, water pumps provided by Xin-Xin Cheng Hebei water pump factory. Hebei Xin-pump factory (www.shuibeng999.com) strong, credible, in Baoding centrifugal pumps and other industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xin Cheng pumps and you work into the brilliant, for a better future!