Technical data

Envoy Installation and Operation

Is the system energized? 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 load-center.

• Verify that the PV modules are connected to the microinverters.

Envoy plugged into a circuit on the primary load-center, but the PV circuit breakers are on

a downstream sub-panel: The primary load-center 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 outlet, so that it can be close to the PV circuit breaker.

Local Area Networking Troubleshooting

PROBLEM: IP address issues. If the IP address displayed on the Envoy’s LCD screen is

169.254.120.1, or if the IP address does not match the DHCP subnet on the internal network, this

means that the Envoy was unsuccessful in obtaining a DHCP lease from the router.

• Check network connectivity to the router or other DHCP server. You may also wish to

contact your Internet Service Provider or refer to your router documentation for

assistance.

• Check that you are using a broadband router and not a switch or a hub. Many hubs

and switches cannot provide a DHCP lease and may not allow the Envoy to connect to

the web.

• Use the Envoy menu button to “Get New IP Address”.

• Unplug all units in the chain, applying power again in this order: Modem, Router, and

Envoy. Allow a few minutes for the IP address to be reassigned.

PROBLEM: LCD screen displays “-Web”. This means that the Envoy has no connection to the

Enlighten website.

• Check network connectivity to the router. You may also wish to contact your Internet

Service Provider or refer to your router documentation for assistance.

• Allow a few minutes longer. If the Envoy has recently received a valid IP address, it will

likely display +Web momentarily.

PROBLEM: LCD screen displays “Envoy Failure +Web or -Web”. This message displays after the

Envoy has tried unsuccessfully three times to initialize.

• Unplug the Envoy from the electrical outlet and plug it in once again. Leave it in place

for at least 15 minutes. If it continues to display Envoy Failure or if it never moves

beyond the Initialization stage, call Enphase Customer Support.

PROBLEM: The Envoy is in a location that yields a good signal-strength, but using an Ethernet

cable here is not practical:

• In this case, you may need to use power line communication bridges or a wireless

Ethernet bridge.