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Chapter 7 Maintenance and De-installation
7.1 Fault shut down and troubleshooting
7.1.1 LED fault and troubleshooting
Please refer to the definition of LED lights in Table 5-1 and troubleshoot
according to Table 7-1:
LED fault status
Neither the "Power" LED nor the
LCD screen lights up.
The "GRID" LED is blinking.
The "RUN" LED lights off or "FAULT"
LED lights up.
7.1.2 LCD fault and troubleshooting
The inverter will be shut down automatically if the PV power generation
Table 7-1 Trouble shooting of LED lights
Solutions
1. Turn off the external AC
breaker
2. Switch the DC switch to "OFF"
position
3. Check the PV input voltage and
polarity
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 correct
and secure
Refer
to
troubleshooting
84
Table
7-2
for
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