LS600 Installation and Operation Guide
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Microinverter System Trouble Shooting Guide
Leave troubleshooting to qualified electrical professionals.
Do not unplug the microinverter during operation. This may damage the
microinverter and expose the operator to electrical hazard. First open the AC
circuit breaker; then disconnect the AC grid; then unplug the inverter from the PV
module. (To disconnect the entire system from the AC grid, open the main
circuit breaker. To disconnect a particular AC branch circuit, open the circuit
breaker connected to that branch.)
Please follow the steps below for troubleshooting system problems:
1. Make sure the AC grid voltage and frequency are both in the allowed range for proper operation.
Refer to the microinverter datasheet for the accepted AC grid conditions.
2. Check the connection of the system. Disconnect the AC side and then the DC input side of the
microinverter.
3. Check the PV module open circuit voltage. The open-circuit voltage of PV module should stay in the
range specified in the microinverter datasheet.
4. Reconnect the DC side cable and check the LED status of the microinverter. If the green LED light is
flashing, the DC connection is good.
5. Check the AC grid side connection. If the entire system doesn’t work, check the main AC circuit
breaker. For a particular branch problem, check the AC circuit breaker connected to that branch. For a
particular microinverter problem in a branch, check the AC cable connection of that microinverter. If the
LED is solid green after blinking 10 times, the grid connection is good.
Do Not attempt to repair the microinverter. This will void the warranty and can
bring electrical hazard to those attempting it. Contact LeadSolar customer
support to initiate an inverter return process.
