Enphase M215 Service Manual download pdf (Page 27)

M215 Installation and Operation

Troubleshooting

Adhere to all the safety measures described throughout this manual. Qualified personnel can use the

following troubleshooting steps if the PV system does not operate correctly.

WARNING: Do not attempt to repair the Enphase Microinverter; it contains no user-

serviceable parts. If the microinverter fails, contact Enphase customer service to obtain

an RMA (return merchandise authorization) number and start the replacement process.

Status LED Indications and Error Reporting

Startup LED Operation:

The status LED on the underside of each M215 lights green about six seconds

after DC power is applied. It remains lit solid for two minutes, followed by six green

blinks. After that, red blinks indicate that no grid is present if the system is not yet

energized.

Six short red blinks after DC power is first applied to the microinverter indicate a

failure during microinverter startup.

Post-Startup LED Indications

Use a handheld mirror to view indicator lights on the undersides of the microinverters:

 Flashing Green: Indicates normal operation. The microinverter is receiving messages from

the Envoy and senses that the utility grid is within voltage/frequency specifications.

 Flashing Orange: Indicates that the microinverter is not receiving messages from the Envoy,

but is otherwise operating normally. The microinverter senses that the utility grid is within

voltage/frequency specifications.

 Flashing Red: Indicates that the microinverter is not operating normally. The microinverter

does not sense that the utility grid is within voltage/frequency specifications. The

microinverter cannot produce power until this is resolved. See “Troubleshoot an Inoperable

Microinverter” on page 28.

 Solid Red: For M215-60-2LL-S22-IG, S23-IG, or S24-IG this indicates a “DC Resistance

Low – Power Off” fault. Troubleshoot as described in the following section.

 Solid Red: For M215-60-2LL-S22, S23, or S24 this indicates a GFDI fault. Troubleshoot as

described in the following section.

DC Resistance Low – Power Off Fault

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

indicates the microinverter has detected a DC Resistance Low – Power Off event. 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.

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.

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Enphase M215 Service Manual Page 27