Troubleshooting 119
57618 Blown string
fuse
Note: Can also
be configured as
a fault.
One or more failed DC string fuses. Read the aux code (1...8) from the
Events menu -> Active warnings. The
aux code refers to the affected string. If
the aux code refers to a string that is
not connected, run the string
configuration assistant with the proper
settings.
If the same warning occurs again,
power down the inverter and contact
authorized service personnel to
replace the failed string fuses.
57632 Control board
overtemperature
High temperature in the control
electronics.
The inverter adjusts the output current
and power until the internal
temperature decreases.
The inverter automatically returns to
normal operation.
Monitor the inverter for a few days.
Contact authorized service personnel if
the warning occurs frequently.
57633 Inverter
overtemperature
High temperature in the power
electronics.
The inverter adjusts the output current
and power until the internal
temperature decreases.
The inverter automatically returns to
normal operation.
Monitor the inverter for a few days.
Contact authorized service personnel if
the warning occurs frequently.
57635 Internal fan Internal fan failure.
The inverter continues to operate but it
might limit the output power or suffer
overtemperature trips.
Contact authorized service personnel
to replace the internal fan and report
the fan failure to the system supplier.
57636 External fan 1 External fan 1 failure.
The inverter continues to operate but it
might limit the output power or suffer
overtemperature trips.
Contact authorized service personnel
to replace the external fan and report
the fan failure to the system supplier.
57637 External fan 2 External fan 2 failure.
The inverter continues to operate but it
might limit the output power or suffer
overtemperature trips.
Contact authorized service personnel
to replace the external fan and report
the fan failure to the system supplier.
57638 Internal fan run
time
The internal fan has reached the end of
its life.
The inverter and internal fan continue to
operate normally.
Contact authorized service personnel
to replace the internal fan.
57639 External fan 1
run time
The external fan 1 has reached the end
of its life.
The inverter and external fan continue
to operate normally.
Contact authorized service personnel
to replace the external fan.
57640 External fan 2
run time
The external fan 2 has reached the end
of its life.
The inverter and external fan continue
to operate normally.
Contact authorized service personnel
to replace the external fan.
57641 SPD connected The surge protection cartridge is
correctly assembled. This event is
reported only once, the first time an
surge protection cartridge is installed.
Informative warning (no action
needed).
Code Warning Cause What to do