enphase IQ Combiner 5C Installing

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 red in unison The IQ Gateway is booting up
Flashing green sequentially Software upgrade in progress
Network communications
Solid green Communicating with the Enphase Installer Platform
Flashing green WPS connection in progress, or IQ Gateway is attempting to connect to Enphase Installer Platform
Solid red Local network connection only
Off No network connection
AP mode
Solid green AP mode enabled: IQ Gateway Wi-Fi network available
Off AP mode disabled: IQ Gateway Wi-Fi network unavailable
Power production
Solid green All communicating microinverters are producing
Flashing green Microinverter upgrade in progress
Solid red At least one microinverter is not producing
Off Microinverters are not communicating (low light or nighttime)
Device communications
Solid green All devices are communicating
Flashing green Device scan in progress
Solid red 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 red, 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 IQ Gateway.
If there is sufcient daylight for the microinverters to power up, the issue
may be that the IQ Gateway is having difculty communicating over the
power lines. To troubleshoot this issue:
• Check the Enphase Installer App to see which devices are not com-
municating.
•
Check that the circuit breaker(s) in the IQ Combiner 5/5C 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.
c
Power production issues
If the power production LED lights red, check the Enphase Installer 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, rst
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. 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 red:
•
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 IQ Gateway, 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 and the Network Communica-
tions LED remains off or lights red, see Troubleshooting in the Enphase Mobile
Connect Installation Guide.
If you replace your router, congure the IQ Gateway Wi-Fi settings for the new
Wireless Network Name (SSID) and password, or use the WPS function de-
scribed 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 Gateway (all LEDs off)
If the IQ Gateway is not receiving power, all LEDs will be off.
• Use a multimeter set to AC to test line 1 on the IQ Gateway breaker to
the AC neutral busbar. The result should be around 120 VAC.
g
Inoperable IQ Gateway and no AC to branch
If a branch of microinverters is not producing and the IQ Gateway 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.

enphase IQ Combiner 5C Specifications

General

Brand	enphase
Model	IQ Combiner 5C
Category	Inverter
Language	English