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GFDI Fault
A solid red status LED when DC power has been cycled
indicates the microinverter has detected a GFDI error. The
LED will remain red and the fault will continue to be reported
by the Envoy until the error has been cleared. The error can
only be cleared via the Envoy after the ground fault condition
has been remedied. Contact Enphase customer support for
assistance.
Other Faults
All other faults are reported to the Envoy. Refer to the Envoy
installation and operation manual for a list of additional faults
and troubleshooting procedures.
WARNING
Always disconnect AC power before disconnecting the
solar panel wires from the microinverter. The AC connector
of the first microinverter in a branch circuit is suitable as a
disconnecting means once the AC branch circuit breaker
in the load center has been opened.
2. Troubleshooting an Inoperable microinverter (for
experienced installers)
To troubleshoot an inoperable microinverter, follow the
steps in the order shown:
A
Check the connection to the utility grid. Verify the
utility voltage and frequency is within allowable
ranges shown in the technical data section of the
Andalay AC System Install Tips. Verify utility power
is present at the microinverter in question by
removing AC, then DC power. Never disconnect the
DC wires while the microinverter is producing power.
Re-connect the DC panel connectors and watch for
six short LED flashes.
B
Check the AC branch circuit interconnection
harness between all the microinverters. Verify each
microinverter is energized by the utility grid as
described in the previous step.
C
Make sure that any AC disconnects are functioning
properly and are closed.
D
Verify the PV panel DC voltage is within the
allowable range shown in the Technical Data page of
this document.
E
Check the DC connections between the
microinverter and the solar panel.
F
If the problem persists, please call customer support
at Andalay Solar.
3.
Disconnecting the microinverter from the solar panel
To ensure the microinverter is not disconnected from the
PV panels under load, adhere to the following
disconnection steps in the order shown:
A
Disconnect the AC by opening the branch circuit
breaker, or disconnect.
B
Disconnect the first AC connector in the branch
circuit.
C
Cover the panel with an opaque cover.
D
Using a DC current probe, verify there is no current
flowing in the DC wires between the Andalay panel
and the microinverter.
E
Care should be taken when measuring DC currents,
most clamp-on meters must be zeroed first and tend
to drift with time.
F
Disconnect the Andalay panel DC wire connectors
from the microinverter.
G
Remove the microinverter from the Andalay AC
frame.
MONITORING SYSTEM
The following sections describe possible problems. For
information on system status and events messages see
Enphase Envoy event messages on page 21.
Potential Problems and Solutions
IP Address Problem
: If the IP address displayed on the
Envoy's LCD window does not match the dynamic host
configuration protocol (DHCP) subnet on your internal
network and shows something beginning with 169.254.x.x,
this means that it was unsuccessful in obtaining a DHCP
lease from your router.
D
Check network connectivity to the router or other DHCP
server. You may also wish to contact your internet
service provider or refer to your router documentation for
assistance.
LCD Window Displays — Web:
This means that the Envoy
could not connect to the internet to find an network time
protocol (NTP) server and could not connect to the Enlighten
website.
D
Check network connectivity to the premises router or
switch. You may also wish to contact your internet
service provider or refer to your router documentation for
assistance.
