1.To implement wiring,it is necessary to turn off the power supply.

2.When the power supply is cut off,before the indicator lamp of the solar pump frequency converter is turned off, it means that there is still high voltage inside,so the  internal circuit and components must not be touched.

3.Never refit the internal parts and circuits of the frequency converter by yourself.

4.If there are still some unknown problem in use,please contact our customer service.

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