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14.2 WARNING DEFINITIONS AND TROUBLESHOOTING
CODE
DESCRIPTION
TROUBLESHOOTING
W000
Battery communication failure
Check the battery settings to ensure they are set
for the specific battery type. Check the battery
communications cable for proper
W001
AFCI Com failure
Restart Inverter. If the error persists, contact the
distributor
W002
AFCI High
Check each PV string for correct open circuit
voltage and short circuit current. If the PV strings
are in good condition, please clear the fault on
W003
Meter communication failure
Check communications cable. Contact the
distributor if error persists
W004
Battery BMS fault
Inverter is receiving incorrect information from
battery’s BMS. Restart batteries and ensure the
communication cables are installed correctly. If
error persists, please contact the distributor
W006
RSD Active Check if the RSD switch is pressed
W008
Firmware mismatch
Contact the distributor/installer for Firmware
update
W009
Fan Stuck Check if the fan is operable
W012
Bat on Mos
Restart the inverter. If error persists, please
contact the distributor
W013
Over temperature
The temperature of inverter is nearing the high
limit
W015
BatReverse
Double check battery connections to inverter. If
error persists, contact the distributor
W018
AC Frequency out of range
Check AC frequency to ensure it is in the operable
range
W019
AC inconsistent in parallel system
Ensure the AC input is from a common source and
installed to each inverter in parallel. If error
persists, contact the distributor
W020
PV Isolation low
Restart inverter. If the error still persists, contact
the distributor
W025
Battery voltage high Battery voltage is nearing the high limit
W026
Battery voltage low Battery voltage is nearing the low limit
W027
Battery open
Check the battery for voltage via multimeter.
Ensure all wires are correctly installed to inverter
W028
Inverter overload Inverter is running beyond max. output
W029
Inverter voltage high
Restart the inverter. If error persists, contact the
distributor
W031
Inverter VDC high
Restart the inverter. If error persists, contact the
distributor