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QUICK GUIDE
EQUINOX
- SOLAR INVERTERS
5.4. FAULT CODES
Fault codes are shown in the bottom right of the LCD screen.
The table below details all of the fault codes that the inverter
may display:
Code
Fault
Description
A001
PV UV
Solar panel input voltage low.
A002
Bus UV
Inverter DC bus voltage low.
A003
Grid UV
Mains voltage low.
A004
Grid OV
Mains voltage high.
A005
Grid UF
Mains frequency low.
A006
Grid OF
Mains frequency high.
A007
Clock Fail
Clock settings incorrect.
A009
Cmd Shut
Forced external shut-off.
A011
Grid Loss
Loss or disconnection from mains.
E001
Input OV
Solar panel input voltage high.
E003
Bus OV
Inverter DC bus voltage high.
E004
Boost Fail
Voltage step-up malfunction.
E005
Grid OC
Internal AC overcurrent.
E006
OTP
The inverter’s internal temperature is too high.
E007
Lo. Iso. R
Isolation impedance low.
E008
IGBT drv
IGBT protection activated.
E009
Int Comm
Internal slave-master communication error.
E010
Ileak Fail
Leakage current high.
E011
Relay Fault
Inverter output relay malfunction.
E012
Fan Fail
Inverter internal fan malfunction.
E013
Eeprom
Internal memory error.
E014
DC inject
High level of DC injection at the AC output.
E015
OutputShort
Short circuit in the output.
E018
Input OC
Solar panel input current high.
E019
Incnst
Inconsistent values for mains voltage, frequency, leakage current or DC injection on the AC side.
E020
PowerReversed
Change in the polarity of the input terminals for the solar panels.
E025
Locking
Device locked.