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PD201806 AEG GRID-TIED SINGLE-PHASE SOLAR INVERTER V.1-18 EN
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7. Troubleshooting
This section describes the fault alarms and fault codes for quick troubleshooting.
Fault code
Message
Instruction
Fault analysis
A
A001
Input UV
Input undervoltage
PV1 undervoltage
PV2 undervoltage
A002
Bus UV
Bus undervoltage
DC input
A003
Grid UV
AC undervoltage
Low voltage of the public grid
A004
Grid OV
AC overvoltage
High voltage of the public grid
A005
Grid UF
AC underfrequency
Low frequency of the public grid
A006
Grid OF
AC overfrequency
High frequency of the public grid
A007
Clock Fail
Clock alarm
Wrong setting
A009
Cmd Shut
Manual shutdown
Stop by the operation panel or upper PC
A011
Grid Loss
The public grid disconnects.
Check if inverter AC connection is well
E
E001
Input OV
Input overvoltage
DC input overvoltage
E003
Bus OV
Bus overvoltage
Internal bus voltage
E004
Boost Fail
Voltage-boost fault
Voltage-boost fault of the inverter
E005
Grid OC
AC overcurrent
Internal AC overcurrent
E006
OTP Overtemperature Internal
overtemperature
E007
Riso Low
Low isolation impedance
Low isolation impedance of the external
port system
E008
IGBT drv
IGBT drive protection
IGBT drive protection of the inverter
E009
Int Comm
Internal communication fault
Master-slave DSP communication
disabled
Error of master-slave DSP check bit
E010
Leek Fail
Huge leakage current
Huge leakage current of the system or
inverter
E011
Relay Fault
Relay fault
Internal relay fault