Troubleshooting 13
13.1 Error message
When a malfunction occurs, an error message will be displayed on the OLED screen and the
LED indicator red will light up. 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 panel
•The number of panels in each string
•If you need to replace the device, please ship it to the original box.
13.2 System error
Warning Code
1 .After shutdown,Checkthe panel is normal.
2.If error message still exists, contact manufacturer.
String PID quick connect
terminal detection error
1 .After shutdown,Check the string terminal wiring.
2. If the error message still exists, contact the manu-
facturer.
DC SPD function abnor-
mal
1 .After shutdown,Check the DC SPD.
2.If error message still exists.contact manufacturer.
1 .Check the PV1 or PV2 wiring is short-circuited 2.If
error message still exists,contact manufacturer.
Dry contact function ab-
normal
1 .After shutdown,Check the dry Dry contact wiring.
2.If the error message still exists, contact manufac-
turer.
1 .Restart inverter.
2.If error message still exists,contact manufacturer.
AC SPD f un c tio n ab-
normal
1 .After shutdown,Check the AC SPD.
2.If error message still exists,contact manufacturer.
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