First: when starting the motor does not rotate when the micro pump.
Reason:
1 auxiliary switch DC regulated power supply fault;
2 battery or battery without power is not enough;
3 line contact;
4 motor and carbon brush contact;
Second: after the start of the pump motor work but not the water.
Reason:
1 there are debris or particulate impurities in the pump;
2 suction process is higher than the pump rated suction process;
Third: traffic shortage.
Reason:
1 the actual head of the pump more than the allowable lift;
2 voltage is too low, the motor speed is slow;
3 suction process is too high;
4 air entry into the pipe;
Fourth: the flow gradually become small.
Reason:
1 water inlet impurities blocked;
2 filter use time is too long, there is a particle impurity;
Fifth: the work of the micro pump water abnormal interrupt.
Reason:
1 motor does not start, the exclusion of circuit fault;
2 pipe plug, remove plug;
3 pipeline rupture, repair welding or replacement;
4 strainer plug, plug removal;
5 water outlet pipe exposed surface;
Sixth: the pump is running at the time of violent vibration or noise abnormal increase.
Reason:
1 access voltage higher than the set voltage;
2 mounting angle is not fixed;
3 motor or pump shaft bending.
