Power Optimizer Troubleshooting - SolarEdge StorEdge Installation Manual

Power Optimizer Troubleshooting

If the inverter status screen indicates that not all power optimizers are paired or not all
are reporting (P_OK xxx/yyy, and x<y), those optimizers can be identified through the
LCD. Refer to https://www.solaredge.com/sites/default/files/non_reporting_power_
optimizers.pdf
Pairing failed
String voltage is 0V
String voltage not 0V but lower than number of optimizers
StorEdge Inverter Installation Guide MAN-01-00390-1.1
Problem
Appendix A: Troubleshooting
Possible cause and
troubleshooting
Power optimizers are shaded.
If you connected the inverter to the monitoring
platform, retry pairing remotely (during
sunlight). Make sure to leave the inverter
ON/OFF switch ON and that S_OK appears in
the status screen.
Power optimizer (s) output is disconnected.
Connect all power optimizer outputs.
Power optimizer(s) not connected in the string.
Connect all power optimizers
Module(s) not connected properly to power
optimizer inputs (not applicable to smart
modules).
Connect the modules to the optimizer inputs
String reverse polarity.
Check string polarity using a voltmeter and
correct if needed.
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