Technical Support


When you have any technical problems you can always contact our customer service, we will provide you with the best solution.






Solar Panel selection



PUMP VOLTAGE
(V)
SOLAR PANEL
(W)
PEAK VOLTAGE
VMP(V)
OPEN CIRCUIT VOLTABE
VOC(V)
24V/36V≥1.3PUMP POWER≥1818V-50V
48V≥1.3PUMP POWER≥3030V-96V
72V≥1.3PUMP POWER≥5050V-150V
96V≥1.3PUMP POWER≥6060V-180V
110V≥1.3PUMP POWER≥6060V-180V


1.The open circuit voltage of the solar power supply system shall not exceed the maximum input voltage of the PCB.

2.The MPPT voltage of the solar power system shall be higher than the rated voltage of the pump.







Fault Information and Troubleshooting Method




Fault Type


Fault
Code
Fault
Description
Causes and Solutions of FaultRecovery Procedure
P0
Hardware
Overcurrent

 •Motor model is mismatch, please choose matching pumps.

 •UVW three-phase short-circuit connection, please rewiring to ensure the normal   installation of UVW.

 Automatically remove after 30s
P43Phase Protection


 •UVW three-phase open circuit, please rewiring to ensure it reliable contact.


 Automaticallyremove after 30s
P46Stall Protection

 •Motor model is mismatch, please choose matching pumps.

 •Pump extension cord is too long, please reduce the extension cord.

 •Power is too low, increase the power supply.

 •Pump bearing is stuck, please clean pump bearings.

 Automaticallyremove after 30s
P49
Software
Overcurrent

 •Water pump bearing stuck, clean pump bearings.

 •UVW three-phase short-circuit connection, please rewiring to ensure the normal   installation of UVW.

 Automaticallyremove after 30s
P50
Low Voltage
Protection


 •The input voltage is too low, please distribute power refer to the electrical   characteristics.


 Voltage return tonormal,
 remove the fault immediately
P51
High Voltage
Protection


 •The input voltage is too high, please distribute power refer to the electrical   characteristics.


 Voltage return tonormal,
 remove the fault immediately
P48
Dry-run
Protection

 •Not all of air in the pump is exhausted, cut off the power, re-power and start the   pump drainage after 30 seconds.

 •There is no water in the water tank waiting for water, it will restart.

 Automatically clear after 30 minutes or   repower to clear
P60
High Temperature
Protection

 

 •The temperature of controller MCU is more than 90°C.


 Automatically clear after the
 temperature is normal
E8Current Sampling Failure


 •Cut off the power and restart after 30 seconds.


 Restart the power
PLPower Shortage

 •No sunlight, waiting for the sunlight to restart.

 •Solar panel matching error, refer to the recommendation to match correctly.

 At the first 5 times,it will removal  after 30
 seconds, and then 30 minutes to  removal
ALARM  Reverse connection protect  


 •Exchange the positive and negative wire.


 Restart the power


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Address:
No.55 Hangwen Road Shanshi,Wenling city, Zhejiang,China.