Envoy-S Installation and Operation
2016 Enphase Energy Inc.
141-00031 Rev 01
34
Troubleshooting
The following sections describe possible problems and solutions.
WARNING
: Risk of electric shock. Risk of fire. Do not attempt to repair the Envoy-S; it
contains no user-serviceable parts. Tampering with or opening the Envoy-S will void the
warranty. If the Envoy-S fails, contact Enphase Customer Support for assistance
(
enphase.com/global/support-request
). Warranty void if cover removed. Refer servicing
to qualified personnel.
Microinverter Detection Issues
Troubleshoot power line communication issues as follows.
Issue: Installer Toolkit Shows “Cross Domain Traffic Reported”
This means that communications from other Envoy(s) have been detected. To prevent this issue:
When multiple Envoy-S units exist on a common switchboard or transformer, commission
only one system at a time at installation.
When multiple Envoy-S units on a common switchboard, use power line filters and separate
the conduits and wires by at least 32 cm (12 inches).
If this alert persists or if the Installer Toolkit Microinverters screen (or Enlighten) shows more
microinverters than expected, contact Enphase Customer support at
enphase.com/global/support-
request
.
Issue: Microinverter Communications LED is Solid Amber
If the Microinverter Communications LED
lights solid amber, it may be a result of low light levels. If
there is not enough sunlight to power up the microinverters, they cannot 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 microinverters are not communicating.
Check that the circuit breaker(s) 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.
Issue: Installer Toolkit Detects Fewer Microinverters than Expected
The
Microinverters detected
count shown in Installer Toolkit is an indication of the number of online
microinverters producing power, reporting in to the Envoy, and not having any error conditions. If this
number is lower than expected, it may indicate that the Envoy is not done scanning/discovering the entire
array. Alternatively, it may indicate that the Envoy is having difficulty communicating over the power lines.
It could also be a result of low light levels or that the PV module voltage is too low for the microinverter to
power up. To troubleshoot the issue:
Check Enlighten or use the Installer Toolkit to connect to the Envoy to see if any
microinverters are not reporting in to the Envoy or having any error conditions.
If installing the Envoy-S Standard, be sure that the Envoy is plugged directly into the wall and
not
into a power board or surge protector. Unplug any other device that is sharing the AC
socket with the Envoy. Or, as an alternative, plug the Envoy into a circuit that supports fewer
electronic appliances. Appliances sharing a power receptacle with the Envoy may interfere
with power line communication.
Relocate your Envoy as close to the switchboard as possible. This ensures that the Envoy
receives the strongest possible signal from each microinverter.
If this problem occurs when light levels are low, try again during daylight hours.
