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ID12 HwBatOCP
The battery current is too
high and has triggered
hardware protection
ID13 GFCI OCP
The GFCI sampling value
between the master DSP
and slave DSP is not
consistent
If the fault occurs occasionally, the possible cause
is that the external circuits are abnormal
occasionally. WKS I inverter automatically returns
to normal operating status after the fault is
rectified.
If the fault occurs frequently and lasts a long time,
check whether the insulation resistance between
the PV array and earth(ground) is too low, also
check the insulation conditions of PV cables.
ID14 HWPVOCP
The PV current is too high
and has triggered hardware
protection
ID14-ID15 are internal faults of WKS I inverter,
switch OFF WKS I inverter, wait for 5 minutes,
then switch ON WKS I inverter. Check whether
the problem is solved.
If no, please contact WATTUNEED technical
support.
ID15 HwAcOCP
The grid current is too high
and has triggered hardware
protection
ID16 IpvUnbalance Input current is not balanced
Check the
PV input mode (parallel mode/
independent mode) setting of WKS I inverter. If
it’s incorrect, change the
PV input mode.
ID17 HwADFaultIGrid
The grid current sampling
error
ID17-ID26 are internal faults of WKS I inverter,
switch OFF WKS I inverter, wait for 5 minutes,
then switch ON WKS I inverter. Check whether
the problem is solved.
If no, please contact Wattuneed technical support.
ID19 HwADFaultVGrid
The grid voltage sampling
error
ID20 GFCIDeviceFault The GFCI sampling error
ID21 MChip_Fault The master chip fault
The auxiliary voltage error
LLCBus voltage is too high
ID26 SwBusOVP
Bus voltage is too high and
has triggered software
protection
ID27 BatOCP Battery current is too high
If the fault occurs frequently, please contact
Wattuneed technical support.
ID28 DciOCP The DCI is too high
ID28-ID31 are internal faults of WKS I inverter,
switch OFF WKS I inverter, wait for 5 minutes,
then switch ON WKS I inverter. Check whether
the problem is solved.
The grid current is too high
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