DOCR-070645-E
Page 83 of 102
6.0: Maintenance and Removal of Inverter
6.1 Fault Shutdown and Troubleshooting
6.1.1 LED Fault and Troubleshooting
When contacting Solectria for support please provide the serial number of the
inverter and the fault message. If the fault is regarding a voltage issue, please measure
the AC and DC voltage at the inverter prior to calling.
Please refer to the definition of LED lights in Table 4.1 and troubleshoot according to
Table 6.1.
Table 6.1 - Troubleshooting of LED Lights
LED fault status
Solutions
Neither the “Power” LED nor the LCD
lights up.
1. Turn off the external AC breaker
2. Switch the DC switch to “OFF”
position
3. Check the PV input voltage and
polarity
The “GRID” LED is blinking.
1. Turn off the external AC breaker
2. Switch the DC switch to “OFF”
position
3. Check whether the grid voltage
is normal and whether the cable
connection of AC side is installed
correctly and secure
The “RUN” LED turns off or “FAULT” LED
lights up.
Refer
to
Table
7.2
for
troubleshooting
6.1.2 LCD Fault and Troubleshooting
The inverter will be shut down automatically if the PV power generation system fails.
This can happen due to an output short circuit, grid overvoltage / under voltage, grid
over frequency / under frequency, high environmental temperature or internal
malfunction of the machine. The fault information will be displayed on the LCD. Please
refer to “Present Fault” for detailed operation.
The causes of a fault can be identified based on the faults listed in Table 6.2. Proper
analysis is recommended before contacting after-sales service. There are 3 types of
fault: alarm, protection and hardware fault.
