Enphase IQ8 Install and Operation Manual

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

Method 2: Use Enphase Installer App to Clear the Condition

On the list of detected microinverters, a green dot or red square appears to the left of each microinverter serial

number. A green dot indicates Status OK. A red square indicates an event for that microinverter.

• Tap the to the left of the serial number to view details for a microinverter event.

• If the microinverter status shows that there is an active DC Resistance Low – Power Off

condition, tap the to send the clear message to the affected microinverter. The

app then indicates that a clear message was sent.

Other Faults

All other faults are reported to the Gateway. Refer to the Enphase IQ Gateway Installation and Operation

Manual at enphase.com/support for troubleshooting procedures.

Troubleshoot an Inoperable Microinverter

To troubleshoot an inoperable microinverter, follow the steps in the order shown

WARNING: Risk of electric shock. Always de-energize the AC branch circuit before servicing. Never

disconnect the DC connectors under load.

WARNING: The Enphase Microinverters are powered by DC power from the PV modules. Make sure you

disconnect the DC connections and reconnect DC power and then watch for the solid green about six

seconds after connection to DC power.

A. Make sure AC breakers and disconnects are closed.

B. Check the connection to the utility grid and verify that the utility voltage is within allowable ranges.

C. Verify that AC line voltages at all solar power circuit breakers at the load center and subpanels are within the

ranges shown in the following table.

D. Verify that AC line voltage at the junction box for each AC branch circuit is within the ranges shown in the

following table:

240 Volt AC, Single Phase

L1 to L2

211 to 264 VAC

L1, L2 to ground

106 to 132 VAC

208 Volt AC, Single Phase

L1 to L2

183 to 229 VAC

L1, L2 to ground

106 to 132 VAC