enphase D380, Troubleshooting Manual

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Troubleshooting an Enphase System

2014 Enphase Energy Inc. August 2014
9
Troubleshooting Topics
Use the following table to find information on a problem by category.
Topic Page
Production issues
ACFOOR (AC Frequency Out of Range) 33
ACVOOR (AC Voltage Out of Range) 34
When an entire branch or multiple branches are impacted 34
When only a few microinverters are impacted 36
Critical Temperature 37
DC Too Low 39
DC Too High 40
Device Produced No Power 40
GFI tripped 41
DC Resistance Low
–
Power Off 37
Grid Gone 42
Over Temperature 43
The unit under review shows low production. 28
Why is one unit showing 0W production when adjacent units are productive? 29
Notes on Open Circuit Voltage 30
Other Things to Check 30
Envoy not reporting
Envoy not Reporting 40
Gateway Failure 40
LCD displays “Envoy Failure”
12
LCD periodically shows “
-
Web” for minutes or hours at a time.
17
LCD shows a good IP, but also shows “
-
Web”
17
LCD shows a non-routable/self-
assigned IP address and also shows “
-
Web”
15
The Envoy cannot get a “+Web” even though all premis
es networking is intact 20
The Envoy is using a static IP and cannot get a web connection 17
Microinverter not reporting
Microinverters are not detected / Power line communication level is low/poor 22
Microinverter Failed to Report 43
My panels are dark in Enlighten and no production value is displayed 31
General
A physical Ethernet connection is not practical at this site 11
Are my power line communication bridges working? 19
Can I use a dial-up Internet connection with the Envoy? 20
Enlighten will not allow me to select the panel 31