Issue: Envoy Displays Zero Bars; Network Basics And Troubleshooting - enphase Envoy Installation And Operation Manual

Issue: Envoy Displays Zero Bars

The following conditions may exist.
Has a device scan been run while the array was active? The Envoy may have run a device
scan on power-up when the array was not connected to the grid or when the array was not
powered by sunlight.

Run another scan during daylight hours.

Check that the circuit breaker(s) for the PV array are in the "ON" position. For the Envoy to
communicate with the microinverters, the PV circuit breakers must be in the "ON" position in
the AC mains.

Verify that the PV modules are connected to the microinverters.
Is the Envoy plugged into a good location? The Envoy needs to be plugged into an AC outlet
near the primary AC mains or the array's downstream subpanel.

Make sure the Envoy is not plugged into an outlet strip or surge protector.

Plug the Envoy into an outlet closer to the AC mains or subpanel.

Unplug other devices from the AC outlet used for the Envoy.

As an alternative if signal strength is poor, power the Envoy from the solar production circuit
(where local electrical code allows for monitoring equipment on the same circuit). This
provides the best possible power line communications. The Envoy must be located indoors
(a garage, attic, basement, or other cool, dry location) or in an outdoor weatherproof
enclosure. Remember that the Envoy must also have Ethernet access via the broadband
router, either directly with a CAT5 cable, Enphase wireless adapter, or via a power line
communication bridge.
Is the system energised? PV modules power microinverters, PV modules provide power only
during daylight hours, and microinverters communicate only when powered.

Run another scan during daylight hours.

Check that the circuit breaker(s) for the PV array are in the "ON" position. For the Envoy to
communicate with the microinverters, the PV circuit breakers must be in the "ON" position in
the electrical AC mains.

Verify that the PV modules are connected to the microinverters.
Is there a phase imbalance?

Ask the electrician to measure the conductors and neutral line to verify that the phases are
balanced. If the phases are not balanced, electricians must recheck the wiring.
The Envoy is plugged into a circuit on the primary AC mains, but the PV circuit breakers
are on a downstream subpanel: The primary AC mains is full and doesn't have additional
capacity to add circuit breakers.

Add a subpanel with a small subset of circuit breakers. In this case, it is best to add an
additional 5-Amp circuit breaker and then run an outlet off that subpanel. Plug the Envoy into
that AC outlet, so that it can be close to the PV circuit breaker.

Network Basics and Troubleshooting

To the Local Area Network (LAN), the Envoy is just another host on the network, much like a personal
computer. Enphase offers technical support at
Enphase's Support responsibility does not extend to the premises network or LAN.
The Envoy must obtain a DHCP (Dynamic Host Configuration Protocol) IP address and have a route to
the Internet. The Envoy will request this IP address from the broadband router during the power-up
sequence. Two small green LEDs on the Ethernet port indicate Internet link and activity. One LED will be
solid green, and the other will blink every few seconds.
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Envoy Installation and Operation
for Envoy issues, but
141-00014 Rev 04