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Q : The water pump already runs, why is there no water coming out of the pipe?
A: 1. Check the pump running direction is reversed or not, power off, and exchange U and W cable can change the direction.
2. Some centrifugal pumps need to be filled with water before work properly.
3. The pump head is proportional to the square of the frequency.if the output frequency is too low, it will cause the head of the pump to drop, resulting in not water. it needs to add the solar panel power, and set P15.05 output lower limit frequency.
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