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User Manual V1.1-2022-11-15
09 Maintenance
9.5 Routine Maintenance
Maintaining Item Maintaining Method Maintaining Period
System Clean
Check the heat sink, air intake, and air
outlet for foreign matter or dust.
Once 6-12 months
DC Switch
Turn the DC switch on and o ten
consecutive times to make sure that it is
working properly.
Once a year
Electrical Connection
Check whether the cables are securely
connected. Check whether the cables are
broken or whether there is any exposed
copper core.
Once 6-12 months
Sealing
Check whether all the terminals and ports
are properly sealed. Reseal the cable hole
if it is not sealed or too big.
Once a year
Fault Explanation
Consistent Fail
Check the heat sink, air intake, and air outlet for foreign matter or
dust.
DCI High
Turn the DC switch on and o ten consecutive times to make sure that
it is working properly.
EEprom R/W Fail
Check whether the cables are securely connected. Check whether the
cables are broken or whether there is any exposed copper core.
SPI Fail
Check whether all the terminals and ports are properly sealed. Reseal
the cable hole if it is not sealed or too big.
Ref 2.5v Fail
The reference voltage limitation is exceeded, which leads to detection
deviation of voltage and current.
AC HCT fail Error in AC current sensor.
E: Error message.
WARNING
• Make sure that the inverter is powered o.
• Wear proper PPE before any operations.
Explanation of some faults:
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