IQ 7 / IQ 7+ / IQ 7X / IQ 7A with EN4 Bulkhead Installation and Operation
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M. Check the DC connections between the microinverter and the PV module. The connection
may need to be tightened or reseated. If the connection is worn or damaged, it may need
replacement.
N. Verify with your utility that line frequency is within range.
O. If the problem persists, contact Customer Support at
enphase.com/en-us/support/contact.
Disconnect a Microinverter
If problems remain after following the troubleshooting steps listed previously, contact Enphase at
enphase.com/en-us/support/contact.
If Enphase authorizes a replacement, follow the steps below. To
ensure the microinverter is not disconnected from the PV modules under load, follow the disconnection
steps in the order shown:
A. De-energize the AC branch circuit breaker.
B. Enphase AC connectors are tool-removable only. To disconnect the microinverter from the
Enphase Q Cable, insert the disconnect tool and remove the connector.
C. Cover the PV module with an opaque cover.
D. Using a clamp-on meter, verify there is no current flowing in the DC wires between the PV
module and the microinverter. If current is still flowing, check that you have completed steps
one and two above.
NOTE
: Take care when measuring DC current as most clamp-on meters must be zeroed
first and tend to drift with time.
E. Disconnect the PV module DC connectors from the microinverter using the disconnect tool
from the manufacturer of the mating DC connector from the PV module connector.
F. If present, loosen and/or remove any bonding hardware.
G. Remove the microinverter from the PV racking.
WARNING
:
Risk of electric shock. Risk of fire. Do not leave any connectors on the PV
system disconnected for an extended period. If you do not plan to replace the
microinverter immediately, you must cover any unused connector with a sealing cap.
