TROUBLESHOOTING
Contact Enphase Customer Support (
enphase.com/en-us/support/contact
) if you have any questions about troubleshooting your system.
a
LED overview
LED
State
Description
All
Flashing amber in unison
The IQ Envoy is booting up
Flashing green sequentially
Software upgrade in progress
Network communications
Solid green
Communicating with Enlighten
Flashing green
WPS connection in progress, or IQ Envoy is attempting to connect to Enlighten
Solid amber
Local network connection only
Off
No network connection
AP mode
Solid green
AP mode enabled: IQ Envoy Wi-Fi network available
Off
AP mode disabled: IQ Envoy Wi-Fi network unavailable
Power production
Solid green
All communicating microinverters are producing
Flashing green
Microinverter upgrade in progress
Solid Amber
At least one microinverter is not producing
Off
Microinverters are not communicating (low light or night time)
Device communications
Solid Green
All devices are communicating
Flashing Green
Device scan in progress
Solid Amber
At least one device is not communicating
Off
Devices are not communicating (low light or night time)
b
Device detection issues
If the Device Communications LED
lights solid amber, it may be a
result of low light levels. If there isn’t enough sunlight to power up the
microinverters, they can’t communicate with the Envoy.
If there is sufficient daylight for the microinverters to power up, the issue
may be that the Envoy is having difficulty communicating over the power
lines. To troubleshoot this issue:
• Check the Installer Toolkit mobile app to see which devices are not
communicating.
• Check that the circuit breaker(s) in the IQ Combiner 3C-ES for the PV
array are in the “ON” position.
• Verify that the PV modules are connected to the microinverters.
• Verify the PV module DC voltage is within the allowable range for the
microinverter.
• For connection issues related to Encharge/Enpower, ensure that you
have performed Range test to make sure that all the devices are in
the communication range.
c
Power production issues
If the Power Production LED lights solid amber, check the Installer Toolkit
mobile app to see which microinverters are not producing:
• If no microinverters are producing power, there may be a grid or wiring
issue. First, verify that there is proper input voltage and frequency from
the utility. Next, check the breaker and wiring, starting at the load center.
• If all of the non-productive microinverters are on the same branch,
check the breaker and wiring starting at the junction box for the affected
branch.
• If only one or scattered microinverters are not producing power, first
check to see that the AC connectors are fully seated. Next, check that
each module is providing the required startup voltage for the microin-
verter (22V). A PV module that is failing or that is undersized may not
generate enough power for AC conversion.
d
Internet connection issues
If you are using Wi-Fi and the Network Communications LED
remains off or
solid amber:
• The WPS connection window may have timed out. Retry the connection steps.
• Make sure that the broadband router is connected and operational by
checking that other devices at the site can access the network.
• Check for metal enclosures or obstructions that may be impeding wireless
communication.
• If you don’t see your router/access point in the list on the Envoy, or cannot
maintain a connection, you may need to add a wireless repeater to extend
the network range.
If you are using the Enphase Mobile Connect modem and the Network Com-
munications LED remains off or lights solid amber, see Troubleshooting in the
Enphase Mobile Connect Installation Guide.
If you replace your router, configure the IQ Envoy Wi-Fi settings for the new Wire-
less Network Name (SSID) and password, or use the WPS function described in
Installation Step 10.
e
Loss of AC to a single branch of microinverters
If a single branch of microinverters is not producing, it may indicate loss of AC
to the branch.
• Use a multi-meter set to AC to test the breaker lugs. The result should be
around 240 VAC.
• If not, switch the breaker off and on to reset.
f
Inoperable IQ Envoy (all LEDs off)
If the IQ Envoy is not receiving power, all LEDs will be off.
• Use a multimeter set to AC to test line 1 on the Envoy breaker to the AC
neutral busbar. The result should be around 120 VAC.
g
Inoperable IQ Envoy and no AC to branch
If a branch of microinverters is not producing and the IQ Envoy LEDs are off:
• Test at the main lugs for L-L and L-N voltages. The results should
be around 240 VAC and 120 VAC respectively. If not, there may be a
problem with the wiring from the panel.
