Troubleshooting - GE GEP User Manual

6 Troubleshooting

If the Inverter is not able to work properly, please refer to the following instructions before
contacting your local service. If any problems arise, the red (FAULT) LED indicator on the front
panel will light up and the LCD screen will display relevant information. Please refer to the
following table for a list of error messages and associated solutions.
Type of fault
1. Disconnect DC switch, take off DC connector, check the impedance between
PV (+) & PV(-) to earth.
2. If impedance is less than 100 kΩ, please check the insulation of PV string
Isolation Failure
wiring to earth.
3. If impedance is large than 100 kΩ, please contact local service office.
4. Take off AC connector, measure the impedance between neutral wire and PE
line. If it is larger than 10KΩ, please check AC wiring.
1. The ground current is too high.
2. take off the inputs from the PV generator and check the peripheral AC
system.
Ground I Failure
3. When the problem is cleared, reconnect the PV panel and check the Inverter
status.
4. Contact local service office for help if the problem still persist.
1. The PV Inverter will automatically restart within 5 minutes if the grid returns to
normal.
Vac Failure
2. Make sure grid voltage conforms to specifications.
3. Make sure neutral (N) wire and PE wire are well connecteds.
System
4. Contact local service office for help if the problem still persist.
Failure
1. Grid is not connected.
Fac Failure 2. Check grid cable connection.
3. Check availability of grid.
1. Not connect to the grid.
2. Check if the power cable is connected with grid.
Utility Loss
3. Check the availability of power from the grid.
1. Check whether PV open circuit voltage is higher or too close to the maximum
input voltage.
PV Over Voltage
2. If the problem still persist when PV voltage is less than the maximum input
voltage, contact local service office for help.
1. The internal temperature is higher than normal specified value.
2. Reduce ambient temperature.
Over Temperature
3. Move the inverter to a cool place.
4. If the problem still exists, contact local service office for help.
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Troubleshooting
Type of fault
Relay-Check Failure
DCI Injection High
EEPROM R/W Failure
SCI Failure
SPI Failure
1. Turn off DC switch of the inverter.
2. Wait till the inverter's LCD light is off.
DC BUS High
3. Turn on DC switch and make sure it is connected.
4. If the problem still exists, contact local service office for help.
BUS Unbalance
GFCI Failure
Inverter
Failure
Ifan Fault
Efan Fault
Afan Fault
1. Turn off DC switch, take off DC connector, measure the voltage of PV array.
2. Plug in DC connector, and turn on DC switch.
No display 3. If PV array voltage is lower than 250V , please check configuration of inverter
module.
4. If PV array voltage is higher than 250V , please contact local service office.
1. If the Wi-Fi module fails to connect to network after choosing the right router
hotspot and entering the right password，it's possible that there are special
characters not supported by the module in the hotspot password. Please
Wi-Fi module fail to
Others
modify the password so that it consists of only Arabic numerals or uppercase /
connect to network
lowercase letters.
2. If the problem still persists, contact local service office for help.
Note: When sunlight is insufficient, the inverter may continuously start up and shut down
automatically due to insufficient power generation from the PV panels, This should not
lead to inverter damage.
Troubleshooting
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