IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation
27 © 2022 Enphase Energy Inc. All rights reserved. Mar 2022
PV module isn’t functioning correctly. If it stays in place, the problem is with the original microinverter. Contact
Enphase Customer Support for help in reading the microinverter data and for help in obtaining a replacement
microinverter, if needed.
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 IQ 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 wire connectors from the microinverter using the Enphase disconnect tool.
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.
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