JFY JSI Solar Inverter is a Chinese-manufactured brand so it can be expected that it is way cheaper compared to European inverters on the market. Several factors may affect an inverter’s performance which may result in failures.
We have put together a list of fault displays and possible action from JFY JSI Solar Inverter’s user manual for your convenience.
If any problems arise, the “Alarm” LED on the front panel will be red and the LCD displays the relevant information. Please note that safety measures should be observed to avoid any risk of injury or you may also seek assistance from a qualified electrician.
|
DISPLAY |
COMMENTS |
| No any display in LCD or LED | Check PV-input connections |
| W01 No grid | Check grid connection cables. |
| W02 Vin overvoltage | Check the Voc of PV string, see if it is greater than or too close to max. input DC voltage of relative inverter type. |
| E01 Isolation error | Check the impedance is between PV (+) & PV (-) and the PV-Inverter is earthed. The impedance must be greater than 2MΩ |
| E02 Leak error | The leakage current is too high.Unplug the inputs from the PV string and check the peripheral AC system. |
| E03 Grid fault | Make sure grid voltage and frequency meet the specifications. |
Please note that during periods of little or no sunlight, the JFY JSI Solar Inverter may continuously start up and shut down. This is due to the insufficient power generated to operate the control circuits but this is not a trouble.
Here are some more fault messages that you may see on the JFY JSI front panel display.
| FAULT | DISPLAY | COMMENTS |
| System fault | Auto Test Failed | Auto Test does not pass |
| W01 No grid | No Utility, No Grid Connect | |
| W02 Vin overvoltage | PV panel Voltage is too high | |
| E01 Isolation error | Insulation Problem of PV panel | |
| E02 Ileak error | GFCI Fault, leakage current is too high | |
| E03 Grid fault | Grid voltage/frequency is out of range | |
| Inverter fault | E04 Coherence error | Consistent Fault |
| E05 Over temperature | Internal temperature abnormal | |
| E06 Relay failure | Output relay Fault | |
| E07 DCinj failure | Output Current DC Offset too high | |
| E08 EEPROM failure | EEPROM Fault | |
| E09 Com. failure | Communication Fault | |
| E10 DC bus OV. | DC Bus over-voltage | |
| E11 DC bus UV. | DC Bus under-voltage | |
| E12 Vref error | 2.5V Reference Voltage Fault | |
| E13 DC sensor fault | DC current sensor fault | |
| E14 GFCI failure | GFCI Device is damaged |
The full details are available in the JFY JSI solar inverter manual’s troubleshooting section.
If following the steps above does not fix the issue and your JFY JSI Solar Inverter is still within the warranty period you can contact the equipment installer or supplier. If your inverter is outside the warranty period we suggest that you contact a professional solar power expert. If you’re on the Gold Coast or Brisbane area contact Gold Coast Power Solutions here and we will be in touch to provide you with further assistance.
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Have you made sure that the motor is running in the correct direction?
I have put all the required parameters in regard to the motor, the sun is ok and it starts to run with 49hz, 12.5A, its a 2.2kw motor but the water is not coming out what could be the possible problem please. Urgently waiting please
You are best to get a local solar expert to look at your installation. They should be able to help you with any warranty claim also.
Hi there, my system has been throwing this fault for months DC INJ I have not been able to get a return email from JFY it was only installed in May 2014 and I still have the contract but they will not return my emails. I am not sure what to do?
Hi Jordon, sorry to hear of the issue you are having with your JFY JSI inverter. The DC INJ message means that the inverter has detected too much DC being injected into the AC side of the system and so it’s throwing this fault message. Unfortunatley this is an internal fault and if it continues to occur it will need to be replaced.