36
35
Don't disconnect the DC connector while the inverter is connected to the
grid.
1. Close the inverter AC circuit breaker.
2. Close the DC switch, when the input PV voltage is higher than 250Vdc, and the
inverter will start automatically.
12.1 Start the inverter
12.2 Shut down the inverter
Steps to turn off the inverter:
1. Disconnect the AC circuit breaker to prevent the inverter from starting again;
2. Turn off the DC switch;
3. Check the operating status of the inverter;
4. Wait until the LED and OLED display are off, indicating that the inverter is turned off.
Danger
12 Start and shut down the inverter
Troubleshooting 13
13.1 Error message
13.2 System error
When a malfunction occurs, an error message will be displayed on the OLED screen.
Faults include system faults and inverter faults.
In some cases, you may be advised to contact Growatt, please provide the following
information.
Information about the inverter:：
●Serial number
●Model
●Error message on OLED
●A short description of the problem
●Grid voltage
●DC input voltage
●Can you reproduce the failure? If so, how?
●Has this problem occurred in the past?
●What were the environmental conditions when the problem occurred?
Information about photovoltaic panels:
●PV panel manufacturer's name and model
●Panel output power
●Voc of the panel
●Vmp of the panel
●Imp of the group
●The number of panels in each string
●If you need to replace the device, please ship it to the original box.
Warning Code
1.Check whether the panel is normal after shutting
down;
2.If the fault message still exists,contact the
manufacturer.
String/PID quick connect
terminal abnormal
1.Check the string terminal wiring after shutdown;
2.If the fault message still exists, contact the
manufacturer.
DC lightning protection
device alarm
1.Check the DC lightning arrester after shutdown;
2.If the fault message still exists,contact the
manufacturer.
1.Check whether the first or second road panel or
circuit is short-circuited;
2.If the fault message still exists, contact the
manufacturer.
Abnormal function of
dry node
1.Check the dry node wiring after shutdown;
2.If the fault message still exists,contact the
manufacturer.
1.Restart the inverter;
2.If the fault message still exists,contact the
manufacturer.
AC lightning protection
device alarm
1.Check the DC lightning arrester after shutdown;
2.If the fault message still exists, contact the
manufacturer.
11 Maintenance and Cleaning
11.1 Checking Heat Dissipation
11.2 Cleaning the Inverter
11.3 Checking the DC Disconnect
If the inverter regularly reduces its output power due to high temperature, please
improve the heat dissipation condition. Maybe you need to clean the heat sink.
If the inverter is dirty, turn-off the AC breaker and DC switch ,waiting the inverter shut
down ,then clean the enclosure lid, the display, and the LEDs using only a wet cloth. Do
not use any cleaning agents (e.g. solvents or abrasives).
Check for externally visible damage and discoloration of the DC Disconnect and the
cables at regular intervals.If there is any visible damage to the DC Disconnect, or visible
discoloration or damage to the cables, contact the installer.
Ø Once a year, turn the rotary switch of the DC Disconnect from the On position to the
Off position 5 times in succession. This cleans the contacts of the rotary switch and
prolongs the electrical endurance of the DC Disconnect.
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