| malfunction | the reason | Method of exclusion |
| Low or no water flow | 1, impeller reversed 2, the flow blockage 3, the motor speed is not enough 4, pumping medium concentration is too large 5, head is too high | 1, adjust the impeller rotation direction 2, remove debris 3, check the power supply voltage and frequency 4, diluted with water dilute concentration 5, change the pump or reduce head |
| ã€Can not start】 | 1, lack of phase 2, impeller stuck 3, winding, connector or cable break 4, the stator winding burn out 5, electrical control failure | 1, check the line, to repair 2, remove debris 3, check with ohmmeter repair 4, to repair, replace the winding 5, check the controller, repair or exchange |
| Stator burned | 1, two-phase operation 2, pumping medium concentration is too large 3, the impeller stuck or loose 4, seal damage to the motor water 5, loose fasteners cause the motor water | 1, 饲 逑 chanting punishment fine income 2, diluted with water 3, remove dirt, tighten the nut 4, replace the mechanical seal 5, tighten the various bolts |
| ã€Overcurrent】 | 1, working voltage is low 2, pipes, impeller blocked 3, pumping liquid density or higher viscosity | 1, adjust the working voltage 2, clean up the pipeline and impeller blockage 3, change the density or viscosity of pumping liquid |
2, the flow blockage
3, the motor speed is not enough
4, 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, diluted with water dilute concentration
5, to change the pump or lower head [can not start] 1, lack of phase
2, impeller stuck
3, winding, connector or cable break
4, the stator winding burn out
5, electrical control failure 1, check the line, to repair
2, remove debris
3, check with ohmmeter repair
4, to repair, replace the winding
5, check the controller, repair or exchange ã€Stator burnout】 1, two-phase operation
2, pumping medium concentration is too large
3, the impeller stuck or loose
4, seal damage to the motor water
5, loose fasteners caused by motor water 1?
2, diluted with water
3, remove dirt, tighten the nut
4, replace the mechanical seal
5, tighten the bolts Bolt [current is too large] 1, the working voltage is low
2, pipes, impeller blocked
3, pumping liquid density or higher viscosity 1, adjust the working voltage
2, clean up the pipeline and impeller blockage
3, change the density or viscosity of pumping liquid
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