Enphase M215 Service Manual download pdf (Page 28)

M215 Installation and Operation

GFDI Fault

For M215-60-2LL-S22, S23, or S24, a solid red status LED when DC power has been cycled indicates

the microinverter has detected a ground fault (GFDI) error. The LED will remain red and the fault will

continue to be reported by the Envoy until the error has been cleared.

An Envoy is required to clear this condition. The condition usually clears with operator intervention unless

conditions causing the event have not been remedied or if the failure is permanent. You can attempt to

clear this fault through Enlighten or by using the Envoy interface.

If the condition does not clear after you perform the following procedure, contact Enphase Energy

customer support at support@enphaseenergy.com.

Follow the instructions in the Envoy Communications Gateway Installation and Operation Manual at

http://www.enphase.com/support to clear this condition. Or, for assistance, contact Enphase customer

support at support@enphase.com.

Other Faults

All other faults are reported to the Envoy. Refer to the Envoy Communications Gateway Installation and

Operation Manual at http://www.enphase.com/support for troubleshooting procedures.

Troubleshoot an Inoperable Microinverter

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

WARNING: Always de-energize the AC branch circuit before servicing. Never disconnect

the DC connectors under load. Disconnect DC connections first, and then disconnect the

AC connections.

WARNING: The Enphase Microinverters are powered by DC power from the PV

modules. Make sure you disconnect the DC connections and reconnect DC power to

watch for the solid green about six seconds after connection to DC power and then six

short green LED blinks two minutes after connection to DC power.

1. Make sure AC breakers and disconnects are closed.

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

ranges shown in “Specifications” on page 35 of this manual.

3. 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.

4. 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, Split Phase

208 Volt AC, Three Phase

L1 to L2

211 to 264 VAC

L1 to L2 to L3

183 to 229 VAC

L1, L2 to neutral

106 to 132 VAC

L1, L2, L3 to neutral

106 to 132 VAC

5. Using an Enphase disconnect tool, disconnect the AC cable for the microinverter in question

from the Engage Cable.

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Enphase M215 Service Manual Page 28

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