Follow the procedure to replace a failed microinverter:
a) Disconnect the microinverter from the PV module, in the order shown below:
i) Disconnect the AC by turning off the branch circuit breaker.
ii) Disconnect the AC connector of the microinverter.
iii) Cover the module with an opaque casing.
iv) Disconnect the PV module DC wire connectors from the microinverter.
v) Remove the microinverter from the PV array racking.
b) Remove the opaque cover, then install a replacement microinverter to the
rack. Remember to consider the flashing LED light as soon as the new
microinverter is plugged into the DC cables.
c) Connect the AC cable of the replacement microinverter.
d) Close the branch circuit breaker, and verify proper operation of the
replacement microinverter.
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