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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 electricity network operator, that the line frequency is within range. If the
problem persists, contact customer support at
Disconnect a microinverter
If problems remain after following the troubleshooting steps listed previously, contact Enphase
customer support at https://enphase.com/contact/support. 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. IQ Cable AC connectors are tool-removable only. To disconnect the microinverter from the
IQ Cable, insert the IQ Disconnect Tool and remove the connector.
C. Cover the PV module with an opaque cover.
D. Using a clamp meter, verify there is no current flowing in the DC cables between the PV
module and the microinverter. If the current is still flowing, check that you have completed
steps A, B, and C above.
NOTE: Take care when measuring DC as most clamp meters must be zeroed first as these
tend to drift with time.
E. Disconnect the PV module DC cable connectors from the microinverter using the IQ
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 an IQ Sealing Cap.
Install a replacement microinverter
A. When the replacement microinverter is available, verify that the AC branch circuit breaker is
de-energized.
B.
Mount the microinverter horizontally bracketed side up or vertically
•
Always place the microinverter under the PV module, protected from direct exposure
to rain, sun, and other harmful weather events. Allow a minimum of 19 mm between
the roof and the microinverter. Also, allow 13 mm between the back of the PV module
and the top of the microinverter.
•
For vertical mount, also maintain > 300 mm clearance from the edges of the PV
module to protect the microinverter from direct exposure to rain, UV, and other
harmful weather events.
WARNING: Risk of equipment damage. Mount the microinverter under the PV
module.
24
IQ8P Microinverter Installation and Operation Manual
https://enphase.com/contact/support
© 2023 Enphase Energy Inc. All rights reserved.
September 2023
IOM-00001-1.0
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