Fault causes and remedies [insufficient flow or no water] 1, the impeller reversal 2, the flow blockage 3, the motor speed is not enough 4, the pumping medium concentration is too large 5, lift too high 1, adjust the impeller rotation direction 2, remove debris 3, check the power supply voltage and frequency 4, dilute the concentration of water dilute 5, change the pump or reduce the head [can not start] 1, phase 2, impeller stuck 3, winding, connector or cable break 4, the stator winding burn 5, Electrical control failure 1, check the line, to repair 2, remove debris 3, check and repair with ohmmeter 4, repair, replace the winding 5, check the controller, repair or exchange ã€Stator burnout】 1, 3, the impeller is stuck or loose 4, the seal damage to the motor water 5, loose fasteners cause the motor water 1, find out the line to eliminate the fault 2, diluted with water 3, remove dirt, tighten the nut 4, replace the mechanical seal 5, tighten the bolts Bolt [current] 1, the working voltage is low 2, the pipeline, the impeller is blocked 3, pumping the liquid density or viscosity higher 1, adjust the working voltage 2, clean up the pipe and impeller Clogged 3, changing the density or viscosity of the pumped liquid
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