Troubleshooting. enphase Envoy-S Standard, Envoy-S Metered

Envoy-S Installation and Operation

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

( [email protected]

). Warranty void if cover removed. Refer servicing to qualified personnel.

Microinverter Detection Issues

Troubleshoot power line communication issues as follows.

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 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, make sure that the Envoy is plugged directly into the wall and

not into a power strip or surge protector. Unplug any other device that is sharing the outlet 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 AC mains 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.

Issue: No Microinverters are Reporting

Check for the following conditions.

Has a device scan been run while the array was active? A device scan may have been run while the array was not connected to the grid or when the array was not powered by sunlight.



Run another scan during daylight hours.

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

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.

Is the Envoy well located? The Envoy must be near the primary load center or the array's downstream subpanel. If installing the Envoy-S Standard:



Make sure the Envoy is not plugged into an outlet strip or surge protector.



Plug the Envoy into an outlet closer to the main load center 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 NRTL-certified, NEMA type 3R enclosure.

Remember that the Envoy must also have an Internet connection.

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.

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.

Is the Envoy-S plugged into a circuit on the primary load center while the PV circuit breakers

are on a downstream subpanel?

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



Hard wire the Envoy-S into that subpanel, so that it can be close to the PV circuit breaker.

Issue: Installer Toolkit Indicates that Scanning is Inhibited

This state occurs after an installer has used the Installer's Toolkit to provision the Envoy. It is best to leave the Envoy in this condition for normal operation. If you need to re-enable scanning (for example, if you replace a microinverter) contact Enphase Customer Support ( [email protected]

).

Power Production Issues

Issue: Power Production LED is solid amber

The Power Production LED is solid green when all microinverters are producing, flashes green when a microinverter upgrade is in progress, flashes amber when microinverters are not yet detected, or becomes solid amber when any microinverter that is expected to produce is not. Check in Installer Toolkit to see which microinverters are affected.



If none of the 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.

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

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, first check to see that the AC connectors are fully seated in the Engage Cable connectors. Next, check that each module is meeting the required startup voltage for the microinverter (usually 22 V). A PV module that is failing or that is undersized may not generate enough power for AC conversion.



Refer also to “Microinverter Detection Issues” on page 34 because the microinverters will not

report production if they are not communicating with the Envoy-S.

Internet Connection Issues

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 [email protected]

for Envoy issues, but

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.

Issue: Network Communications LED is Amber or Off

When the Envoy first boots up, it is configured to perform a DHCP broadcast, requesting an IP address from a DHCP source. This source can be a server/computer, but almost all consumer-grade broadband routers also provide DHCP services as well. This is the usual source of IP addresses for network hosts (computers, laptops, and the Envoy). When the Network Communications LED is solid amber, the Envoy-S has a local network connection only and failed to connect to Enlighten after its scheduled reporting time (five minutes).

When the LED is off, there is no network connection.

If you are using the Enphase Mobile Connect modem and the Network Communications LED remains off or lights solid amber, see Troubleshooting in the Enphase Mobile Connect Installation Guide.

For any connection method, you can troubleshoot network issues with the Installer Toolkit mobile app by tapping the Network button, then Diagnostic Tools.



Allow 10 minutes after initial installation. If the Envoy has recently received a valid IP address, the LED will likely turn green momentarily.



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 help.



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 Installer Toolkit to “Get New IP Address”, and then allow 30 to 60 seconds for the

Network Communications LED to show solid green.



When using the Ethernet cable, two small LEDs on the Ethernet port indicate Internet link and activity. One LED will be solid green, and the other will blink green or yellow every few seconds.

If the LEDs are not both on or blinking, try using a new Ethernet (CAT5) cable in place of the existing cable.



Power down all units in the chain, applying power again in this order: 1) modem, 2) router, and

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



If you replace the broadband router, configure the Envoy Wi-Fi settings for the new Wireless

Network Name (SSID) and password.

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Issue: Wi-Fi Problems

If the Network Communications LED remains off:



If the Envoy is installed in an enclosure, that enclosure must be non-metallic to allow wireless communication. Metal enclosures impede wireless communication.



Stucco and plaster wall construction may contain metal mesh, which can affect wireless range. If you cannot see your router or access point in the list on the Envoy, or cannot maintain a connection, relocate the Envoy to be closer to your router or access point.



The WPS connection window may have timed out. Retry the connection steps.



Make sure that the broadband router is operational by checking that other devices at the site can access the network.



If you cannot see your router or access point in the list on the Envoy, or cannot maintain a connection, it may be necessary to add a wireless repeater to extend the network range.

If the Network Communications LED lights solid amber:



Power down all units in the chain, applying power again in this order: 1) broadband modem, 2) router or Wi-Fi base station, and 3) Envoy.



Make sure that the broadband router is connected to the Internet by checking that other devices at the site can access the Internet. If the other devices are not connected to the Internet, contact your ISP for assistance.

Issue: Cellular Connection Status

“Not Connected”

If the Envoy-S Network Communications LED is solid amber for longer than 12 hours and the Installer Toolkit displays a Connection Status of Not Connected:



Unplug the modem USB cable.



Power cycle the Envoy-S, and wait until Envoy-S completely restarts.



Re-connect the cellular modem USB cable.



Allow two minutes between any extraction and insertion of the modem cable in the USB port of the cellular modem.

Issue: Envoy-S is not Connecting with a New Router

If you replace the broadband router at the installation, you need to update the connection information on the

Envoy-S. To do this:



Connect to the Envoy-S local interface as described on page 29.



Select Wi-Fi.



Select Connect Other Network.



Enter the new Wireless Network Name (ESSID) and Security code.

Local Networking Considerations

DHCP versus Static IP Addressing

If the site owner prefers not to use DHCP, you can set up the Envoy to use a static IP address. Use the

Installer Toolkit to configure the static IP. Refer to enphase.com/installer-toolkit/ for more information on the

Enphase Installer Toolkit.



Tap the Network Connectivity menu item. This allows you to see if the Envoy is using DHCP or

Static-IP, and it allows you to change this setting if needed.



Tap Check Network Connectivity to view the Envoy connections.

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WARNING: Do not change the Envoy DHCP setting to use a static IP address unless you also reserve the same IP address on the broadband router. See the section on DHCP reservations in the router instructions. Failure to reserve the static IP address on the router may result in duplicate IP addresses and intermittent Internet connection problems with the

Envoy-S.

MAC Filtering

Check to see if MAC filtering is in use at the site. This has nothing to do with Apple Macintosh computers, but rather, refers to the MAC (Media Access Control) address that each individual network card possesses. The

MAC Address is a 48-bit address, which uniquely identifies that piece of hardware. MAC filtering is a security mechanism by which routers allow administrators to specify which devices can use the router for access to the Internet. This prevents unauthorized/unknown personnel from using the router to get to the Internet.



An example of a MAC address would be: 00:17:F2:D6:B1:45



MAC addresses contain six pairs of characters, including any number 0-9 and letters A-F.



The MAC address of the Envoy will begin with “00:D0:69”:

If MAC filtering is in use at the site, identify the specific MAC address of the Envoy and add it to list of authorized devices on the router. The MAC addresses (wired and wireless) are located on a label on the back of the Envoy.

Firewall Settings

The Envoy initiates outbound connections to Internet servers. Such connections may be restricted by firewall rules set up on the site’s broadband router. Broadband routers typically allow all outbound connections but restrict any/all inbound connections.

If outbound firewall rules are applied at the site, you must configure a static IP address for the Envoy and add new rules that allow outbound access as follows:

Direction Source Protocol Port Destination

OUT

OUT

<Envoy IP address>

<Envoy IP address>

TCP

UDP

80

80 reports.enphaseenergy.com ping-udp.enphaseenergy.com

OUT <Envoy IP address> TCP 443 home.enphaseenergy.com

The Envoy connects to these servers using their DNS names. If you add firewall rules for Envoy reporting,

Enphase recommends using the DNS names rather than the underlying IP addresses. This is because the IP addresses are subject to change without notice.

Microinverter Issues

Clear DC Resistance Low - Power Off Condition

This condition occurs only with the S-Series and M250 Microinverters and one model of the M215

Microinverter (M215-60-2LL-S22-IG). A solid red status LED on the microinverter indicates this condition.

The LED will remain red and the fault will continue to be reported by the Envoy until the error has been cleared.

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An insulation resistance (IR) sensor in the microinverter measures the resistance between the positive and negative PV inputs to ground. If either resistance drops below a threshold, the microinverter stops power production and raises this condition. This may indicate defective module insulation, defective wiring or connectors, moisture ingress, etc. Although the cause may be temporary, this microinverter condition persists until the sensor is manually reset.

If a microinverter registers a “DC Resistance Low - Power Off” condition, you can attempt to clear this condition. An Envoy is required to send the clear-dc-resistance-low message to clear the condition. If the condition does not clear after you perform the following procedure, contact Enphase Energy customer support at [email protected]

.

There are two ways to send a clear message to the microinverter. Note that the condition will not clear after sensor reset if the cause of the failure is still present.

If the condition persists, contact your installer.

Method 1: Clear this error through Enlighten.



Access the System in Enlighten.



Click the Events tab. The next screen lists shows that there is a current “DC Resistance Low -

Power Off” condition for the system.



Click DC Resistance Low - Power Off.



Where “n” is the number of affected devices, click n devices (show details).



Click the serial number of the affected microinverter.



Click the Reset DC Resistance Low - Power Off Sensor button.

The system displays, “A DC Resistance Low- Power Off reset task was issued on 08/03/2015 01:34

PM CDT for this microinverter and is still pending.

”

Method 2: Send the clear message using the Installer Toolkit. On the list of detected microinverters, there is a green dot or red square to the left of each microinverter serial number. A green dot indicates Status OK. A red square indicates an event for that microinverter.



Tap the to the left of the serial number to view details for a microinverter event.



If the microinverter status shows that there is an active DC Resistance Low

– Power Off condition, tap the to send the clear message to the affected microinverter.

The app then indicates that a clear message was sent.

Clear GFI Tripped Condition

This condition occurs only with the M190, D380, M210, M200, M175 Microinverters and one model of the

M215 Microinverter (M215-60-2LL-S22). A solid red status LED on the microinverter indicates a ground fault

(GFDI) error. The LED will remain red and the fault will continue to be reported by the Envoy until the error has been cleared.

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If a microinverter registers a GFI Tripped condition, you can attempt to clear this condition. An Envoy is required to send the clear-gfi message to clear the condition. If the condition does not clear after you perform the following procedure, contact Enphase Energy customer support at [email protected]

.

There are two ways to send a clear message to the microinverter. Note that the condition will not clear after sensor reset if the cause of the failure is still present.

If the condition persists, contact your installer.

Method 1: Clear this error through Enlighten.



Access the System in Enlighten.



Click the Events tab. The next screen lists shows that there is a current

“GFI Tripped” condition for the system.



Click GFI Tripped.



Where “n” is the number of affected devices, click n devices (show details).



Click the serial number of the affected microinverter.



Click the Reset GFI Sensor button.

The system displays, “A GFI sensor reset task was issued on 08/03/2015 01:34 PM CDT for this microinverter and is still pending.

”

Method 2: Send the clear message using the Installer Toolkit. On the list of detected microinverters, there is a green dot or red square to the left of each microinverter serial number. A green dot indicates Status OK. A red square indicates an event for that microinverter.



Tap the to the left of the serial number to view details for a microinverter event.



If the microinverter status shows that there is an active GFI tripped condition, tap the to send the clear message to the affected microinverter.

The app then indicates that a clear message was sent.

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Replacing an Envoy-S

If problems remain after following the troubleshooting steps above, contact Enphase at [email protected]

.

DANGER! 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

( [email protected]

).



Warranty void if cover removed.



Refer servicing to qualified personnel.

If Enphase Customer Support authorizes an Envoy-S replacement (RMA), perform the following steps.

DANGER! Risk of electrocution! When replacing the Envoy-S Metered, CTs must be installed with no current flowing in the sensed circuit. Do not energize the sensed circuit until the CT leads are installed in the terminal block. Do not disconnect the CT leads from the terminal block while the sensed circuit is energized.

DANGER! Risk of electric shock. Be aware that installation of this equipment includes risk of electric shock. If you wire the Envoy-S at the subpanel, always de-energize the subpanel before servicing.

DANGER! Risk of electric shock. Risk of fire. If the Envoy-S is wired for metering, only qualified personnel should install or replace the Enphase Envoy-S.

WARNING! When replacing the Envoy-S Metered, you must install a new production CT to maintain metering accuracy. A new production CT is included with the replacement Envoy-S.

WARNING! If the Envoy-S you are replacing uses an Enphase cellular modem (Enphase

Mobile Connect), do NOT move the cellular modem to another installation site. This deactivates the modem.

Replacing an Envoy-S Standard with AC Power Cord (Model ENV-S-AB-120-A)

1. Disconnect the Ethernet cable (if used) and power cord from the old Envoy-S.

2. When the replacement Envoy-S arrives, power it

as described in “2. Provide a Power

Connection

” on page 12.

3. Verify that the new Envoy-S powers up.

BEST PRACTICE: When powered up and connected for the first time, the Envoy-S may retrieve an automatic upgrade from Enphase. Because this upgrade may take up to 15 minutes, connect the Envoy-S first at the site (connect to both AC power and the broadband router) so that it performs the upgrade well before the solar module installation is complete.

During upgrade the Envoy-S LEDs flash green sequentially.

WARNING! Risk of Equipment Damage. Do not remove power from the Envoy-S if the

Envoy-S LEDs are flashing green sequentially. This indicates that a software upgrade is in progress.

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4. Connect the Envoy-

S to Enlighten as described in “7. Connect to Enlighten” on page 19.

5. Verify that the new Envoy-S Network Communications LED lights green within five minutes. If

not, follow the network troubleshooting steps on page 36.

6. If possible, log in to Enlighten and add the Envoy-S to the Activation for this system by clicking

“Add Another Envoy” under the “Envoy” section.

7. Verify that the new Envoy-S starts discovering microinverters within 20 minutes of starting up. If necessary, use the Enlighten or Device Scan button to start a new device scan during daylight hours.

(See “Initiate a New Scan for Microinverters” on page 24.)

NOTE: If the old Envoy-S has communicated to the microinverters on the same day that the new replacement Envoy-S is installed, the new Envoy-S will be unable to discover the microinverters. Contact Enphase at [email protected]

for assistance in this situation.

8. Assess the power line communications by running a Communication Check from Enlighten or the Installer Toolkit. If the communication check shows poor power line communications, relocate the Envoy-S closer to the load center.

9. Contact Enphase Support at [email protected]

to have the new Envoy-S added to your system and to retire the replaced Envoy-S.

10. Ship the old Envoy-S to Enphase using the supplied RMA shipping label.

Replacing a Hardwired Envoy-S

If Enphase Customer Support authorizes an Envoy-S replacement (RMA), perform the following steps.

DANGER! Risk of electrocution! CTs must be installed with no current flowing in the sensed circuit. Do not energize the sensed circuit until the CT leads are installed in the terminal block. Do not disconnect the CT leads from the terminal block while the sensed circuit is energized.

DANGER! Risk of electric shock. Be aware that installation of this equipment includes risk of electric shock. If you wire the Envoy-S at the subpanel, always de-energize the subpanel before servicing.

WARNING! When replacing an Envoy-S that uses a production CT (model ENV-S-AM1-

120), you must install the new production CT included with the replacement Envoy-S.

1. Turn off the circuit breaker supplying Envoy-S.

2. Disconnect the L1, L2, L3 (if used) and Neutral wires from the old Envoy.

3. Disconnect the Ethernet cable (if used).

4. Turn off the circuit breaker supplying the microinverters.

5. Disconnect the production CT.

6. Unlatch the split-core of the consumption CTs (if used) before disconnecting. Once the CTs are unlatched, remove them from the sensed wires.

7. Inspect the CTs for damage. If they are damaged, you must order another pair (order CT-200-

SPLIT).

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8. When the replacement Envoy-S arrives, install the Envoy-S and provide power as described in

“2. Provide a Power Connection” on page 12.

9. Install the new production CT and replace the consumption CTs (if used) as described in

“3.

Install CTs for Metering (Model ENV-S-AM1-120 only)

” on page 15.

10. Verify that the new Envoy-S powers up.

BEST PRACTICE: When powered up and connected for the first time, the Envoy-S may retrieve an automatic upgrade from Enphase. Because this upgrade may take up to 15 minutes, connect the Envoy-S first at the site (connect to both AC power and the broadband router) so that it performs the upgrade well before the solar module installation is complete.

During upgrade the Envoy-S LEDs flash green sequentially.

WARNING! Risk of Equipment Damage. Do not remove power from the Envoy-S if the

Envoy-S LEDs are flashing green sequentially. This indicates that a software upgrade is in progress.

11. Connect the Envoy-S to Enlighten as

described in “7. Connect to Enlighten” on page 19.

12. Verify that the new Envoy-S Network Communications LED lights green within five minutes. If

not, follow the network troubleshooting steps on page 36.

13. If possible, log in to Enlighten and add the Envoy-S to the Activation for this system by clicking

“Add Another Envoy” under the “Envoy” section.

14. Verify that the new Envoy-S starts discovering microinverters within 20 minutes of starting up. If necessary, use the Enlighten or Device Scan button to start a new device scan during daylight hours.

(See “Initiate a New Scan for Microinverters” on page 24.)

NOTE: If the old Envoy-S has communicated to the microinverters on the same day that the new replacement Envoy-S is installed, the new Envoy-S will be unable to discover the microinverters. Contact Enphase at [email protected]

for assistance in this situation.

15. Assess the power line communications by running a Communication Check from Enlighten or the Installer Toolkit. If the communication check shows poor power line communications, relocate the Envoy-S closer to the load center.

16. Contact Enphase Support at [email protected]

to have the new Envoy-S added to your system and to retire the replaced Envoy-S.

17. Ship the old Envoy-S to Enphase using the supplied RMA shipping label.

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Event Messages

To view system events in Installer Toolkit:



Open the Installer Toolkit app, tap the More button and then tap Events. The app responds with a list of system Events in chronological order from most recent to oldest.



If you are looking for instances of a specific Event, date, or serial number, enter all or part of the information in the search field.



Tap to return to the previous screen.

To view events in Enlighten, click the Events tab.

The following table lists event messages that indicate various conditions.

Message Shown on

Events and Inventory

Screens

Description

Recommended Action: No action is required unless the condition persists.

ACFreqChangeTooFast

(AC Frequency Changing

Too Fast)

Description: AC frequency is the frequency at which voltage varies on the utility grid. The microinverter reports that this value is changing more rapidly than allowed. Frequency Changing Too Fast events are usually transient and selfcorrecting by the utility.

AcFrequencyOOR (AC

Frequency Out Of Range)

Recommended Action: This condition should correct itself. No action is required.

Description: The microinverter reports that the frequency coming from the utility is either too low or too high as specified by applicable regional standards.

AC frequency is the frequency at which voltage varies on the utility grid. Frequency

Out of Range events are usually transient and self-correcting by the utility.

When the microinverter detects an out of frequency condition, it must remain offline until the utility has been within acceptable limits continuously for a short period of time (seconds to minutes, varies by region). If, during that time, the utility again exceeds or falls short of acceptable limits, the timer must restart and the microinverter may not begin producing power for an additional short period following the last out-of-bounds condition.

AcMonitorErr

ACVoltageAverageHi (AC

Voltage Average Too High)

If the condition persists: Contact your installer or refer to the Troubleshooting

Guide at enphase.com/support .

Recommended Action: No action is required unless the condition persists.

Description: The microinverter is temporarily unable perform power conversion.

If the condition repeats or persists: Contact your installer to arrange for the installation of a replacement microinverter.

Recommended Action: No action is required unless the condition persists.

Description: The microinverter reports that the average AC voltage coming from the utility over the past 10 minutes was too high for the configured grid profile.

If the condition persists: Contact your installer or refer to the Troubleshooting

Guide at enphase.com/support .

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Message Shown on

Events and Inventory

Screens

AcVoltageOOR (AC

Voltage Out Of Range)

Added pcu device with part number 800-00(xxx-xxx)

Application start

Applying grid profile xx from regulatory specification yy

BadFlashImage (Bad Flash

Image)

Bad Meter

Calibration Corrupted

CommandedReset

ControlRequest

CriticalTemperature

DcPowerTooLow

Description

Recommended Action: This condition should correct itself. No action is required.

Description: The microinverter reports that the AC voltage coming from the utility is either too low or too high as specified by applicable regional standards.

When a microinverter detects the voltage out of range condition, it does not produce power (per regulation) until the utility voltage returns within acceptable limits for several minutes (time varies by region). If during that time the utility voltage again goes beyond acceptable limits, the timer restarts.

If the condition persists: Contact your installer or refer to the Troubleshooting

Guide at enphase.com/support .

Recommended Action: No action is required.

Description: The Envoy-S added a new microinverter to the database.

Recommended Action: No action is required.

Description: Normal application start up.

Description: The Envoy has started a change to the grid profile for the microinverters. This process may take a few minutes. No action is required. xx = grid profile name yy = Regional specification name.

Recommended Action: Contact Enphase Energy customer support.

Description: The microinverter is not producing power due to a software problem.

Recommended Action: Contact Enphase Energy customer support.

Description: The metering functions of the Envoy-S have failed.

Recommended Action: Contact Enphase Energy customer support.

Description: Metering calibration is incorrect.

Recommended Action: No action is required; it will automatically resume normal operation momentarily.

Description: The microinverter was reset, either following a successful software download or by user command.

Recommended Action: No action is required.

Description: The Envoy has received a control request. This uncommon condition will occur only during isolated troubleshooting procedures by Enphase personnel.

Recommended Action: This condition should correct itself. No action is required.

Description: This rare condition occurs if the microinverter reports an internal temperature that exceeds its rated range. It reacts by producing less power to reduce internal temperature. This reflects internal temperature coming from a sensor inside the microinverter, not the ambient temperature. Once the internal temperature of the microinverter is once again within normal limits, it will resume full power production and this event message will clear.

If the condition persists: Contact your installer or Enphase Energy customer support at [email protected]

.

Recommended Action: This condition should correct itself. No action is required.

Description: This condition may occur at sunrise or sunset, while the modules are covered with snow, or during extreme weather. This event indicates that sunlight levels are too low for effective production. Once sunlight levels increase, the microinverter resumes power production and this event message will clear.

If the condition persists: Contact your installer or Enphase Energy customer support at [email protected]

.

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Message Shown on

Events and Inventory

Screens

Description

DCResistanceLoPowerOff

Recommended Action: Clear this error via Enlighten’s Current Issues page. Note that the condition will not clear after sensor reset if the cause of the failure is still present.

If the condition persists, contact your installer.

Description: An IR sensor in the microinverter measures the resistance between the positive and negative PV inputs to ground. If either resistance drops below a threshold, the microinverter stops power production and raises this condition. This may indicate defective module insulation, defective wiring or connectors, moisture ingress, etc. Although the cause may be temporary, this microinverter condition persists until the sensor is manually reset.

If the condition persists: If the event persists after clearing the condition, contact your installer.

For further assistance, contact Enphase Energy customer support at [email protected]

.

DcVoltageTooHigh

DcVoltageTooLow

DownloadBegin (Download to module begun)

DownloadEnd (Download to module ended)

DownloadFail (Download to module failed)

Envoy Stopped

FilesystemAuditFailure

Recommended Action: Ask your installer to check that the PV module and microinverter are compatible. It may be that the PV module generates a higher voltage than is recommended for the microinverter. The Enphase M250 and M215 are compatible with most 60-cell modules. The M190 and D380 are compatible with many 60- and 72-cell modules.

Description: The microinverter reports that DC input voltage from the PV module is too high.

If the condition persists: If the PV module is compatible and the condition persists, contact your installer or refer to the Troubleshooting Guide at enphase.com/support .

Recommended Action: This is usually a normal condition during hours of low light and at dawn and dusk. No action is required.

Description: The microinverter reports that DC input voltage from the PV module is too low. If this condition does not clear during hours of full daylight, the microinverters may be heavily shaded or covered by snow.

If the condition persists: If this event occurs during full daylight or if the condition persists, contact your installer or refer to the Troubleshooting Guide at enphase.com/support .

If this event occurs and clears daily or often during hours of full daylight, check that the PV module and microinverter are compatible. The M215 and M250 are compatible with most 60-cell modules.

Description: The Envoy has started a software upgrade to the indicated microinverter.

Recommended Action: This process may take a few minutes. No action is required.

Description: The Envoy has successfully delivered a software upgrade to a microinverter.

Recommended Action: No action is required.

Description: The Envoy was unable to successfully deliver a software upgrade to a microinverter.

Recommended Action: No action is required; the Envoy will repeat the attempt.

Recommended Action: No action is required.

Description: Envoy powered down

Description: The Envoy file system integrity audit has failed.

Recommended Action: For assistance, contact Enphase Energy customer support.

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Message Shown on

Events and Inventory

Screens

GfiTripped

GridGone

GridInstability

GridOffsetHi

GridOffsetLow

Grid profile application completed

Envoy-S Installation and Operation

Description

Recommended Action: Clear this error via Enlighten’s Current Issues page. After being reset, the condition will clear unless the conditions causing the event remain or if the failure is permanent.

Description: A microinverter has detected ground fault current greater than one amp on the DC side. A GFI sensor in the microinverter detects changes in the DC current and quickly opens (breaks) the circuit when there is a ground fault. These ground faults can be due to DC wires making contact with grounded racking, moisture, or overload.

If the condition persists: If the GFI event persists after clearing the condition from the Envoy, contact your installer.

For further assistance, contact Enphase Energy customer support at [email protected]

.

Recommended Action: In most cases no action is required. This occurs if there is a power outage in your area and the system has stopped production. Solar production will resume when the utility restores power to your area. Verify that the circuit breaker(s) for the PV array are ON at the load center. If all breaker(s) are on, the condition should clear itself.

Description: The microinverter has detected grid instability. In most cases, this points to a problem with the utility service (e.g., a power outage). In other cases, this may be a false positive and a microinverter may be incorrectly reporting grid instability. In this case a microinverter software upgrade may be needed to help resolve this issue.

If the condition persists: If Grid Gone events persist, contact your installer or refer to the Troubleshooting Guide at enphase.com/support .

Description: The microinverter is not producing power due to one or more of these conditions: AC Frequency Out Of Range, AC Voltage Out Of Range, or Grid Gone.

Note that Grid Instability will remain for about five minutes after the underlying conditions clear. No power is produced during this time.

Recommended Action: No action is required unless the condition persists. If it persists, contact Enphase Energy customer support.

Recommended Action: No action is required unless the condition persists.

Description: The average current to the grid is too high for the configured grid profile.

When the microinverter is operating normally, no DC current is injected into the grid. If the DC current is too high, this may indicate an issue with the microinverter.

If the condition persists: Contact your installer or refer to the Troubleshooting

Guide at enphase.com/support .

Recommended Action: No action is required unless the condition persists.

Description: The average current to the grid is too low for the configured grid profile.

When the microinverter is operating normally, no DC current is injected into the grid. If the DC current is too low (negative), this may indicate an issue with the microinverter.

If the condition persists: Contact your installer or refer to the Troubleshooting

Guide at enphase.com/support .

Description: The Envoy has completed a change to the grid profile for the microinverters. No action is required.

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Envoy-S Installation and Operation

Message Shown on

Events and Inventory

Screens

GwFailure (Gateway

Failure)

HardwareError

Description

Description: This condition occurs after the Envoy has tried unsuccessfully three times to start up.

This condition does not affect your system’s ability to produce power. When the connection is restored, the Envoy will catch up with the transmission of any/all energy data it has stored.

Recommended Action: Unplug the Envoy from the AC outlet and plug it in once again. Leave it plugged in and in place for at least 15 minutes.

If the condition persists: If the condition persists, contact your installer or refer to the Troubleshooting Guide at enphase.com/support .

Recommended Action: Contact your installer to arrange for the installation of a replacement microinverter.

Description: A hardware failure has occurred that prevents power conversion.

IupLinkProblem

ModuleAdd

Microinverter failed to report

Microinverter grid configuration failed after 5 attempts, retrying

Microinverter grid configuration failure cleared after xx attempts

ModSleep

Recommended Action: No action is required unless the condition persists.

Description: The IUP (Inter Microprocessor) is the internal communications link between the two sides of a D380 Microinverter. The message indicates that the

Envoy detects a communications problem with the indicated D380(s).

If the condition persists: Contact Enphase Customer Support at [email protected]

for a software upgrade. If the D380 does not respond to the upgrade, it will need to be replaced.

Description: The Envoy has detected and is now associated to a new microinverter.

No action is required.

Recommended Action: Ignore occasional instances of this event. Communication usually recovers on the next reporting cycle.

If communications do not recover immediately, ensure that the Envoy is plugged in very near the load center. Also, if other devices are sharing the outlet with the

Envoy, remove those devices from the outlet to improve signal strength.

If the Enphase Envoy was recently relocated or if new devices or appliances were added to the circuit, it is possible that the new situation is not suitable for power line communication. The Envoy may need to be relocated to improve signal strength and reduce interfering noise on the power lines.

To determine the quality of the Envoy’s location for communication, run a

Communications check.

Description: The Envoy reporting this condition is unable to communicate with the microinverters over the power lines.

If the condition persists

: See “Power Line Communication Troubleshooting” on

page 34, or contact your installer, or refer to the Troubleshooting Guide at

enphase.com/support .

Description: The attempt to change the grid profile for the microinverters has failed after five tries. The Envoy will continue to attempt to change the grid profile.

Recommended Action: No action is required.

Description: A failed attempt to change the grid profile for the microinverters has cleared. The grid profile was successfully applied. xx = number of attempts

Recommended Action: No action is required.

Description: The microinverter is off for the night.

Recommended Action: No action is required.

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Message Shown on

Events and Inventory

Screens

No Grid Profile

Description

OverTemperature

PwrGenOffByCmd (Power generation off by command)

PowerOnReset

RGM Error

RGM Power Quality

Warning

Shutdown

Startup

Tpm Profile Inverter

Incompatible

Transient Grid Profile

Recommended Action: Ask the installer set up select a grid profile for this system.

Description: The Envoy has not been set up with a grid profile for the microinverters.

Description: The microinverter is too hot and is not producing power. This very rare condition usually clears without intervention.

Recommended Action: No action is required unless the condition persists. If it persists, contact Enphase Energy customer support.

Description: The microinverter is not producing power by user command. This uncommon condition will occur only during isolated troubleshooting procedures by

Enphase personnel.

Recommended Action: No action is required.

Description: The microinverter has powered on after having DC disconnected.

Recommended Action: No action is required.

Description: The Enphase-compatible Revenue Grade Meter (RGM) has failed.

Recommended Action: Contact your installer to arrange for installation of a replacement meter.

Description: The Enphase-compatible Revenue Grade Meter (RGM) reports that the AC voltage coming from the utility is either too low or too high as specified by applicable regional standards. This is usually a temporary condition that will clear when power quality from the local utility returns to normal.

Recommended Action: No action is required unless the condition persists. If the condition persists, contact your installer.

Description: The Envoy has been powered down (unplugged from AC power).

Recommended Action: Restore AC power to the Envoy.

Description: The Envoy has been powered back up (plugged back in to AC power).

Recommended Action: No action is required.

Recommended Action:

The microinverters may need to have a software upgrade in order to be compatible with the selected grid profile. (The selected grid profile defines operating parameters that are compatible with your utility service.) If a microinverter software upgrade does not start automatically a few minutes after the after Envoy has discovered all microinverters, contact Enphase Energy customer support. Note that the Envoy requires a minimum of 3 bars to communicate effectively with the microinverters for the software upgrade.

Description: This message displays when the selected grid profile is incompatible with microinverter software or hardware. This condition can affect your system’s ability to produce power.

If the condition persists: Contact Enphase Energy customer support

( [email protected]

) .

Recommended Action: No action is required. This condition will clear once the grid profile test is complete.

Description: This system is currently in test mode.

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