enphase M250 Troubleshooting Guide

Troubleshooting an Enphase System
 2014 Enphase Energy Inc. August 2014
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3. In the clear-gfi menu, select set.
4. Click Send Command.
Grid Gone
The microinverter reports that power from the utility is no longer present or is out of voltage or frequency
specification. In most cases, no action is required. Solar production resumes when conditions normalize.
Enphase microinverters are utility interactive and require a connection to the utility.
 Verify that the solar circuit breakers are on at the load center. If all breakers are on, the condition
should clear itself.
 If Grid Gone events repeatedly occur on one microinverter or only on portions of a branch, call
Enphase Customer Support for assistance.
What is a “Utility Interactive” inverter?
The NEC (National Electric Code) defines this as, “An inverter intended for use in parallel with an
electric utility to supply common loads that may deliver power to the utility.” A utility-interactive
inverter lets PV system owners export excess power back to the utility.

enphase M250 Specifications

General

Model	M250
Manufacturer	Enphase Energy
Efficiency	96.5%
Output Voltage	240 V
Operating Temperature Range	-40°C to +65°C
Maximum Output Current	1.04 A
CEC Efficiency	96.0%
Start-up Voltage	22 V
Output Frequency	60 Hz
Enclosure Rating	IP67
Weight	1.6 kg