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KACO blueplanet 3.0 NX3 M2 KACO blueplanet 5.0 NX3 M2 KACO blueplanet 8.0 NX3 M2 KACO blueplanet 10.0 NX3 M2
KACO blueplanet 15.0 NX3 M2 KACO blueplanet 20.0 NX3 M2
No.:
E36/E38
Description
Step
E36-GFCI failure / E38--ISO error
1
This error occurs if the device determines that the system leakage current exceeds the requirements of
the safety standards (200k Ohms).
2
Please check whether the fault occurs in wet and rainy weather. Also check whether the fault
disappears when the weather is dry and sunny. If this is not the case, the device is not the cause of the
fault.
3
Using a multimeter, check whether the voltage PV+ and PV+ to earth is normal. It should be half of PV+
and PV-. Connect the strings individually to check which string is causing the error.
4
Carry out a visual inspection of all PV strings and connections and make sure that the grounding is
reliable.
5
If there is a device of the same model in operation on site, use it to replace the failed device and check
whether the failure was caused by the device.
No.:
E37
Description
Step
PV overvoltage
1
This error occurs if the device determines that the DC input voltage exceeds the maximum DC voltage of
the device.
2
Remove all strings from the device and use the multimeter to measure the voltage between PV+ and
PV- for each string. The total voltage must not exceed the maximum DC voltage of the device.
3
If the measured voltage is normal, there may be an error in the device. Please contact customer service
to replace the device.
No.:
E40
Description
Step
Overtemperature in the device
1
This error occurs when the sensor detects a high temperature in the device.
2
Check for foreign bodies in the fan or heat sink of the device which could be the cause of
overtemperature in the device.
3
Please check the ambient temperature when installing the device (below 40 °C) and do not expose the
device to sunlight. If the error cannot be remedied, please contact customer service to replace the
device.
No.:
E65
Description
Step
PE connection error
1
This error occurs when the inverter detects overvoltage in the N-PE.
2
Using the multimeter, measure the N-PE voltage of the device.
3
Ensure that N and PE are not reversed.
4
If necessary, deactivate the <Monitoring N-PE voltage> function (See Fig. 95 on Page 42) in the APP to
hide the error message.
