IQ Gateway-M Installation and
Operation
30
©
2022 Enphase Energy Inc. All rights reserved.
141-00031 Rev 02
Troubleshooting
The following sections describe possible problems and solutions.
WARNING
: Risk of electric shock. Risk of fire. Do not attempt to repair the IQ Gateway;
it contains no user-serviceable parts. Tampering with or opening the IQ Gateway will
void the warranty. If the IQ Gateway fails, contact Enphase Customer Support for
assistance (
http://www.enphase.com/philippines
). 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 IQ Gateway units exist on a common switchboard or transformer,
commission only one system at a time at installation.
•
When multiple IQ Gateway 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
http://www.enphase.com/philippines
Issue: Microinverter Communications LED is Red
If the Microinverter Communications LED
lights red, 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 IQ Gateway 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.
