Operating Instructions; Troubleshooting; General Micro-Inverter Error Reporting - enphase M175-24-240-S Installation And Operation Manual

2 Turn ON the main utility-grid AC circuit breaker.
3 Your system will start producing power after a five-minute wait time.
4 Operation and production can be verified by reading the display on the
LCD panel of the Energy management unit (Emu) communications
gateway.
5 Please refer to the Emu User Manual for information on installation and
operation of the Emu.
4

Operating Instructions

When the Enphase Micro-Inverter is powered on, you will hear six
!
beeps indicating proper start–up
In the event of a GFDI failure, you will hear a 5-minute long
!
continuous tone when the fault occurs. This will repeat when AC and
DC power are cycled to the Micro-Inverter.
Proper operation of the Enphase Micro-Inverters can be verified via the
!
Emu.
5

Troubleshooting

Adhere to all the safety measures described throughout this manual. Enphase recommends
the following troubleshooting steps in the event your PV system does not operate correctly:
WARNING: The Enphase Micro-Inverter contains no user serviceable
parts. Please return the unit to Enphase for maintenance.

General Micro-Inverter Error Reporting

Normal Operation: Listen for six short beeps when AC or DC power is first
!
applied to the Micro-Inverter. This indicates normal Micro-Inverter operation.
GFDI Fault: A long constant tone after AC and DC power has been cycled,
!
indicates the Micro-Inverter has detected a ground fault (GFDI) error. This
tone will sound for 5 minutes, after which the Micro-Inverter will remain
silent. The fault will continue to be reported by the EMU. The error can only
be cleared via the Emu after the ground fault condition has been remedied.
Contact Enphase customer support at 877-797-4743 for assistance.
Other Faults: All other faults are reported to the Emu. Please refer to this
!
manual for a list of additional faults and troubleshooting procedures.
WARNING: Troubleshooting of the PV array or Micro-Inverter system
should be done by qualified personnel only.
Page 10 Copyright Enphase Energy Inc. 2008 Release 1.4