enphase M250 Troubleshooting Guide

Troubleshooting an Enphase System
 2014 Enphase Energy Inc. August 2014
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To send the clear-dc-resistance-low message to a microinverter:
1. From the Envoy Administration menu, choose Device Conditions and Controls.
NOTE: Do not
check the box in the Select column.
2. Click the serial number of the unit displaying DC Resistance Low - Power Off.
The Control Flags screen displays.
CAUTION: Do not select the reboot and cmd-alert control flags unless recommended by
Enphase. The functions are:
 reboot - reboots the inverter
 cmd-alert - clears a condition flag for a command sent
3. In the clear-dc-resistance-low menu, click the set box.

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