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Experiencing trouble with an inverter? Find solutions for common errors

You have a problem with one of your Fronius devices or your Fronius inverter displays a certain error message? On this page you will find the answer to the most frequently asked questions and a list of state codes.

frequently asked questions

To reconfigure the network, for example after a router has been replaced, and to connect to the inverter to the Internet, perform the following steps:
  1. On the display, activate the inverter’s WLAN access point under “Setup” --> “Wi-Fi Access Point”.
  2. Connect a laptop/tablet/smartphone to this WLAN access point and open a browser. Note: this is a local connection and you do not need to connect to the Internet.
  3. Enter “192.168.250.181” in the address bar of your web browser and navigate to “Settings” --> “Network”.
  4. Select your connection type “Internet via LAN” or “Internet via WLAN”.
  5. If you want to set up an Internet connection via WLAN, select your home network under “Networks found” and click “Set up” to enter the network key/password for your home network. To connect to the Internet via LAN, click on “Internet via LAN” and under LAN settings click on “Get address”. Then select “Dynamic” and accept all settings. If you are unable to connect to the Internet after these steps, check the following:

    Navigate again to “Settings” --> “Network” and under “Networks found” --> “WLAN IP configuration”, check whether “Dynamic” has been set for “Get IP address”. If “Static” is set here, change it to “Dynamic”.

    Note: If your network is a company network, a “static IP address” must be entered in order to set up an Internet connection. Please contact your company’s network administrator and request the network information.

  6. WLAN connection: If the distance between the inverter and the router is too large, reduce it to increase the signal strength. Also, verify that your password entry from the WLAN network was correct. Check if the signal strength from the home WLAN network is sufficient.
  7. LAN connection: Under “LAN settings”, check whether the “Get address” setting has been set to static. If yes, change this setting to dynamic, and then save the network settings with the large tick in the upper right corner.

How to change the network settings on the Fronius Datamanager Card

Reasons for missing notification in the event of a device failure:
  • The delivery of the service messages is deactivated on Fronius Solar.web:
    Navigate to your system on Solar.web under “Settings” --> “Service messages” and activate sending of service messages for different failures. Click “Edit” and check “Receive service messages”. Then set the time period in which you want to receive the service message after a failure. Confirm the settings with “OK”.

  • Fronius Solar.web does not have a phone number or e-mail address for your notification:
    Navigate to your system on Solar.web under “Settings” --> “Contacts” and under “Telephone” and “E-mail” check whether your contact details have been entered and whether they have been correctly stored. Telephone number: click the phone number and click “Edit”, and verify that “Active” is checked. E-mail: click your e-mail address, click “Edit”, and check to see if “Receive service messages” has been enabled.

  • Sending of the service messages is not active in the Datamanager’s web interface:
    The “Send service message to Fronius Solar.web immediately” function can be activated on the Datamanager’s web interface.

    Access to the web interface via WLAN access point:
    On the inverter display, use the buttons below to navigate to “Setup” and activate the WLAN access point. Then connect a laptop/tablet/smartphone to this WLAN access point “Fronius_240.xxxx” with the password “12345678”. Now open any browser (preferably Google Chrome) and enter the IP address “192.168.250.181” in the address bar. Confirm with the Enter key. On the web interface, navigate to “Settings” --> “Solar.web”. In this menu activate the function “Send service message to Solar.web immediately”.

    Access to the web interface via LAN:
    Unscrew the lower cover from the inverter to gain access to the Datamanager card LAN port. Connect a LAN cable from your computer (laptop/PC) to the Datamanager LAN input (LAN input to the right of the WLAN antenna) and set the DIP switch next to the four LEDs arranged in a square to position A (left position). Now open any browser (preferably Google Chrome) and enter the IP address “169.254.0.180” in the address bar. Confirm with the Enter key. On the web interface, navigate to “Settings” --> “Fronius Solar.web”. In this menu, activate the function “Send service message to Fronius Solar.web immediately”.
Possible reasons why access via the datamanager/hybridmanager web interface via WLAN access point is not possible:
  • The end device (laptop, tablet, smartphone) is not connected to the WLAN access point:
    On the inverter display, under “Setup” --> “Wi-Fi Access Point”, activate the Datamanager local WLAN network.The inverter display shows the SSID name: “Fronius_xxx.xxxxx” and the network key “12345678” (always the same) after activation. On your end device, navigate to the WLAN settings and wait until the Fronius network “Fronius_xxx.xxxxx” appears in the list. Then click and connect to this network. The password (network key) is “12345678”.

    Important: The WLAN access point is a local WLAN connection (without Internet). On the end device, under WLAN Settings, disable “Automatic connection” and disconnect from the home network (WLAN network). The wireless end device driver always attempts to use the network that has the highest signal strength as a connection point.

  • Unable to connect to WLAN access point (WLAN access point not available):
    Check the display under “Setup” --> “Datcom” --> “Protocol type” to see if “SOLAR NET” has been set. Then, under “Datcom” --> “Datcom Status”, check whether the status is “Error” or “Ok”.
    If the status is “Ok” and the WLAN access point cannot be activated, contact your installer or Fronius technical support directly. If the status is “Error”, check the following: Remove the lower cover of the inverter and in the lower part check whether a terminating plug has been inserted in each “IN” and “OUT” port. If these two ports are free, insert the supplied terminating plugs (terminal plugs) or use a patch cable (LAN cable) and bridge the ports “IN” to “OUT”. Then check the display under “Setup” --> “Datcom Status” to see if the status has changed from “Error” to “OK”. Then check if the WLAN access point is now available.

  • An incorrect IP address used for access:
    Open your browser (preferably Google Chrome) and enter the IP address “192.168.250.181” into the address bar (URL field) right at the top. Confirm with the Enter key. If this does not resolve the issue, try another browser (Edge, Mozilla Firefox or Opera) to access the web interface.

If the attempt fails again, try physically accessing the web interface via LAN.

  • Accessing the web interface via LAN:
    Unscrew the lower cover of the inverter to gain access to the LAN port of the Datamanager card. Using a LAN cable, connect your computer (laptop/PC) to the Datamanager LAN input (LAN input to the right of the WLAN antenna) and set the DIP switch next to the four LEDs arranged in a square to position “A” (left position). Now open any browser (preferably Google Chrome) and enter the IP address “169.254.0.180” in the address bar. Confirm with the Enter key. If you are also physically unable to access the web interface via LAN, continue with the second point.
  • The end device (laptop, PC) is not physically connected to the Datamanager/Hybridmanager via LAN:
    Check that you have established a physical LAN connection (RJ45 cable) between the end device (laptop, PC) and the Datamanager/Hybridmanager (remove lower cover of the inverter and insert one end of the LAN cable in the LAN port to the right of the WLAN antenna). If necessary, replace the LAN cable (RJ45 cable) and try accessing the web interface again.
  • The DIP switch is set to position “B”:
    Remove the lower cover of the inverter and check that the small DIP switch next to the four LEDs arranged in a square is positioned to the left. If it is shifted to the right (position “B”), move it to the left to position “A”.

  • None of the above points apply and it is still not possible to connect to the web interface:
    Please contact your installer.

On the inverter display, use the control panel to navigate to “Setup” and enable the WLAN access point. Then connect to this WLAN access point “Fronius_240.xxxx” with a laptop/tablet/smartphone using the password “12345678”. Now open any browser (preferably Chrome), type “192.168.250.181” in the address bar and confirm.

 

Unscrew the lower cover of the inverter to gain access to the LAN port of the Datamanager card. Connect a LAN cable from your computer (laptop/PC) to the Datamanager LAN input (LAN input to the right of the WLAN antenna) and set the DIP switch next to the four LEDs arranged in a square to position “A” (left position). Now open any browser (preferably Chrome), type “192.168.250.181” in the address bar and confirm.

If a password has been forgotten, you have the option of generating an unlocking key that can be used to assign a new password for each role (“User/Admin/Service” in the Datamanager and “Customer/Technician” in the GEN24 hybrid inverter).

This “key” can be generated either by the system owner via Fronius Solar.web (“Reset customer password” button on the components page) or by Fronius Technical Support.

The “Reset customer password” function in Solar.web can only be used to create the “key” for a new “User/Admin” password for the Datamanager and the “Customer” password for the GEN24 hybrid inverter. The “Service” (Datamanager/Hybridmanager) and “Technician” (GEN24 hybrid inverter) passwords can only be reset using a “key” created by Fronius Technical Support. Resetting the “Service” password is reserved for trained specialist personnel (electricians, system installers, Fronius System Partners).

Please note that the “key” is only valid as long as the corresponding “challenge” is displayed in the Datamanager web interface when you click “Forgot password”. The “challenge” may be deactivated either by restarting the Datamanager or by entering an incorrect “key” five times. In both cases a new “challenge” and a new “key” must be generated.

The following steps must be performed to reset a forgotten password:

1. Click on “Forgot password” on the login page

2. Select the role for which the password is to be reset and click on “Generate”. Copy or write down the “challenge”

3. Go to your system in Fronius Solar.web. Go to Settings - Components. Click on the three dots under “Actions” and then on “Reset customer password” next to the Datamanager for which the password is to be reset.

4. Create a “key”, enter the “challenge” and click on “Generate and copy”. A “key” is created and automatically saved to the clipboard

5. Enter the “key” in the web interface of the Datamanager and assign a new password. Click “Save”

STATE CODES FRONIUS PRIMO & SYMO GEN24

Your Fronius GEN24 device displays a certain state code? Below you will find a list of Fronius error codes explaining what the message is about and how to fix the problem.

If this error occurs once, the status code can be ignored. However, if this status code occurs frequently, we can provide you with the current beta software (1.13.10-1).  

Please contact your installer.

After 24 hours of energy continuously being fed into the grid, an insulation measurement must be carried out. This is a normative specification. Grid power feed operation is not possible during the insulation measurement. 

After the insulation measurement, the inverter starts feeding energy into the grid again. This is purely for your information - no additional measures are required.

To little DC power for feed-in (reason: too little irradiation, e.g., in the morning or evening; poor weather conditions such as rain, snowfall, or fog; snow on the PV modules; heavy shading).

This is remedied automatically as soon as the PV generator (PV modules) is being supplied with sufficient power. 

A setting has been changed that makes restarting the system necessary. This occurs automatically - no additional measures are required.

Error message may 

a.) Occur together with other errors, which result in shutdown of the inverter, or 

b.) Be triggered through actuation of the emergency stop switch/fire brigade switch on the WSD (orange connector on the far left of the data communication PC board), or 

c.) If no emergency stop switch/fire brigade switch is installed, be triggered due to a missing bridge on the WSD connector.

 

Measures:

Should Case a) occur, check on our Solar.web portal whether other status codes have also been triggered at the same time as Code 1030. If yes, please proceed in accordance with the "Cause/solution" description for these status codes. If not, please contact your installer.

Case b): Please check whether the emergency stop/fire brigade switch has been triggered.

Case c): Please contact your installer.

This status code only appears when starting for the first time and can be ignored.

This status code is triggered as soon as the grid voltage exceeds the stored limit value (depending on country-specific regulations). The inverter reduces the power of feeding in as a result due to the grid voltage being too high. This is purely for your information - no additional measures are required.

If the limit is exceeded, at present with firmware 1.12.5-0 the status code is often still displayed repeatedly. We are working on a solution.

When connecting to the public grid, for example after restarting the inverter, the grid frequency was exceeded. The inverter will not feed in power until the grid frequency is within the limit again. No other measures are required.

With the current firmware version 1.12.5-0, the status code is very frequently displayed repeatedly. We are working on a solution.

State codes FRONIUS GALVO, PRIMO, SYMO, SYMO HYBRID UND ECO - hardware

Your Fronius inverter shows an error message? In the following error code list you will find the explanation and solution for the problem.

Reasons & solutions:

In the last step of the Fronius Solar.web wizard in the Fronius Datamanager web interface, it is possible to create a system directly in Fronius Solar.web, add the Datamanager to an existing system or replace an existing data source of an existing system. In this step, a connection is established to Solar.web and it is checked whether the Datalogger ID of this Datamanager already exists in Solar.web, i.e. is assigned to an existing system as a data source. If this is the case, error 01-0012 is displayed in the web interface. The reasons for this may be:

  • The Datalogger ID is already in use for your system, as the installer has already created the system in Solar.web. Check with your installer to see if this is the case. They can grant your Solar.web account rights to the system. (If you are the installer, please check if the system owner/customer has already added the system. They can then grant you rights to the system accordingly.)
  • The Datalogger ID is already in use for a system that is not your system. This can happen if someone manually enters an incorrect Datalogger ID into Solar.web. In this case, please contact us and have the Datalogger ID and serial number of the inverter to hand.
  • The Solar.web wizard has been called up, although the installation has already been completed. In this case, you can close this page. Go to www.solarweb.com to visualise your system. Reason 1 may apply.

Reasons & solutions:

Status message 107 is sent by the inverter if no AC grid was detected.

Please make sure that your inverter is up to date with the latest software version. If status code 107 is also displayed with the latest software version, please ensure that the circuit breaker is switched on. Status code 107 is also displayed if the network was only temporarily unavailable. Was there a power failure or a grid shutdown?

This may be a reason for status code 107 being displayed. If the above steps do not resolve the problem, please contact your installer.

Reasons & solutions:

Status message 306 is sent by the inverter if there is not enough power available from the PV modules.

This can happen if the PV modules are covered with snow, dirt or leaves or during the night hours. If the PV modules are clear, make sure that the DC switch at the bottom of the inverter is in the “I” switch position (on).

Reasons & solutions:

Status code 307 is sent by the inverter if there is not enough voltage available from the PV modules.

This can happen if the PV modules are covered with snow, dirt or leaves or during the night hours. If the PV modules are clear, make sure that the DC switch at the bottom of the inverter is in the “I” switch position (on).

Reasons & solutions:

Status code 509 is sent by the inverter if there is not enough power available from the PV modules for a period of 24 hours.

This can happen if the PV modules are covered with snow, dirt or leaves or during the night hours. If the PV modules are clear, make sure that the DC switch at the bottom of the inverter is in the “I” switch position (on).

Reasons & solutions:

Status code 522 is sent by the inverter if the voltage from the PV modules is too low to start operation.

This can happen if the PV modules are covered with snow, dirt or leaves or during the night hours. If the PV modules are clear, make sure that the DC switch at the bottom of the inverter is in the “I” switch position (on).

Reasons & solutions:

Status code 523 is sent by the inverter if the voltage from the PV modules at input “DC2” (MPPT2) is too low to start operation. This can happen if the PV modules are covered with snow, dirt or leaves or during the night hours.

If the PV modules are clear, make sure that the DC switch at the bottom of the inverter is in the “I” switch position (on).

Make sure that PV modules are connected to the input “DC2” (MPPT2), which means that this is physically occupied. In case of doubt, your installer can provide you with information.

If the input is not in use, please go to the display of your inverter. There, the input can be deactivated by pressing the 3rd button from the left 5 times and then entering the code “2-2-7-4-2” using the arrow keys and the Enter key. Go to “MPP Tracker 2” -> “DC Tracking Mode” and select “OFF”. If PV modules should be connected, select “AUTO”.

If you are unable to solve the problem yourself, please contact your installer.

Reasons & solutions:

The status code 65000 is sent by the inverter if there is no connection between the inverter and the storage system or if it has been interrupted.

Check that the DC disconnector below the inverter is switched to position “I” (On). Also, verify that the storage system has been turned on. Perform an AC/DC restart on the inverter:

  • De-energise the inverter on the AC side (circuit breaker or residual current circuit breaker, etc.).
  • Switch the DC disconnector below the inverter to the “O” (Off) position.
  • Wait a few minutes.
  • Switch the DC disconnector back on
  • Then switch on the grid on the AC side (secure circuit breakers and residual current circuit breakers). If you are unable to solve the problem yourself or are unsure of a step, please contact your installer.

Reasons & solutions:

Status code 994 is registered if there is no data available for the “Earnings comparison" function that can be compared.

Check Solar.web under “Settings” --> “Components” to see whether the DC power of the inverters has been specified correctly. Check the settings for the “Earnings comparison” function under “Settings” --> “Service Messages”. Check that the settings for deviation, threshold and inverter selection (DC channels) have been correctly stored. Your installer can give you the correct values and settings.

If you are unable to solve the problem yourself, or if you are unsure of a point, please contact your installer.

Reasons & solutions:

The status code 995 is registered on Fronius Solar.web if no data is received from the storage system for a specified time.

You can manually adjust the time period for receiving this service message on Fronius Solar.web under “Settings”--> “Service messages” --> “Battery blackout detection". Please note that live data (bubble chart) is not taken into account. Verify that the storage system has been set to “Standby” mode. Check whether your Fronius Solar.web system might be “offline” and whether other status codes have been registered under “Service messages.” If your system is “offline”, please navigate to the “Solar.web offline” area. If your system is “online” and the status of the storage system is not in “Standby” mode, please contact your installer immediately.

Reasons & solutions:

Status code 996 is an indicator of a communication error between the inverter and Fronius Solar.web.

This status code is displayed when your system is offline for 12 hours, between the end of the day and the start of production the next day. If the connection to the inverter fails due to an unstable Internet connection, you can increase the blackout detection time on Solar.web under “Settings” --> “Service messages” --> “Edit”. Increase the blackout detection period to at least 12 hours. If your system is “offline” for more than 12 hours, check that your router is turned on and that there is an Internet connection. Restart your router. If your system is still offline, do the following:

  1. De-energise the inverter on the AC side (circuit breaker or residual current circuit breaker, etc.).
  2. Switch the DC disconnector below the inverter to the “O” (Off) position.
  3. Wait a few minutes.
  4. Switch the DC disconnector back on. Then switch on the grid on the AC side (secure circuit breakers and residual current circuit breakers).
  5. If your system is still offline, open the Datamanager web interface and reconnect to your home network (router). Under “Settings” à, select “Network” and select your network.”

To set up the connection to the Datamanager via LAN:

Use a Torx screwdriver to remove the lower grey cover of the inverter. Use a LAN cable to physically connect your laptop to the Datamanager. Next to the four LEDs arranged in a square on the Datamanager, set the small DIP switch to the “A” position (left side). Open a browser (preferably Google Chrome) on your laptop and enter the IP address “169.254.0.180” in the address bar. Confirm with the Enter key.

To connect to the Datamanager via WLAN access point:

Navigate to and activate the inverter display under “Setup” -> “Wi-Fi Access Point”. Connect to a laptop, tablet or smartphone and the visible WLAN network “FRONIUS_2XX.XXXXX”. Open a browser (preferably Google Chrome) on your laptop, tablet or smartphone and enter the IP address “192,168.250.181” in the address bar. Confirm with the Enter key. Datamanager 2.0:

If you are unable to solve the problem yourself, or if you are unsure of a point, please contact your installer.

 

Reasons & solutions:

Status code 997 is triggered on Fronius Solar.web by the “Earnings comparison” function.

If there is a defect on the PV generator side or if your PV modules are covered with snow, you will receive this status code as a result. Check Fronius Solar.web under “Settings”  --> “Components” to see if the DC power of the inverters has been specified correctly. If you are unsure whether the values are displayed correctly, please contact your installer.

Reasons & solutions:

Status code 999 is triggered by Fronius Solar.web if inverter data is not recorded on Solar.web for a certain period of time.

You can adjust the time span under “Settings”  --> “Service messages”  --> “Inverter blackout detection”. Check the “DATCOM status” on the display of the inverter under “Setup”  --> “DATCOM”. If the status is “Error”, please contact your installer.

STATE CODES FRONIUS GALVO, PRIMO, SYMO, SYMO HYBRID UND ECO - SOFTWARE UPDATES

When updating the software of your inverter, an error code is displayed? Below you will find a list of error messages with a description of how to resolve the problem.

Reasons & solutions:

  • The USB flash drive is write or read protected. Disable the write or read protection of the USB flash drive.
  • The USB flash drive was not detected. Ensure the USB flash drive is in FAT32 format.
  • The USB flash drive is not supported. Please use a different USB flash drive.
  • The firmware version is out of date. Make sure that you have loaded the latest firmware version onto the flash drive.

Reasons & solutions:

  • The USB flash drive is not suitable due to too high current consumption. Use a different USB flash drive.

Reasons & solutions:

  • The USB flash drive was removed during the software update. Please perform the update again.
  • The software update has been cancelled or has failed. Please perform the update again.

Reasons & solutions:

  • The software name is incorrect. Check the software name and correct the designation if necessary. (Correct: Froxxxxx.upd)
  • The software was stored in an incorrect directory. Copy the firmware file to an empty USB flash drive
  • The USB flash drive is not supported. Use a different USB flash drive.

Reasons & solutions:

  • Older or faulty software was detected on the USB flash drive. Save the latest available software to the USB flash drive.
  • Software from another inverter series was saved. Download the correct firmware file to the USB flash drive.
  • The software does not support at least one of the installed PCBs. Please contact your installer.

Reasons & solutions:

  • The USB flash drive has an incorrect file system (NTFS). Ensure the USB flash drive is in FAT32 format.
  • The USB flash drive is password-protected. Disable the password prompt.
  • The USB flash drive is read or write protected. Disable write and read protection on the USB flash drive.
  • The USB flash drive is not supported. Use a different USB flash drive.

Reasons & solutions:

  • The software is faulty. Download the latest software to the USB flash drive.
  • The USB flash drive has an incorrect file system (NTFS). Ensure the USB flash drive is in FAT32 format.
  • The USB flash drive is not supported. Use a different USB flash drive.

Reasons & solutions:

  • The USB flash drive is password-protected. Disable the password prompt.
  • The USB flash drive is read or write protected. Disable write or read protection on the USB flash drive.
  • The USB flash drive has an incorrect file system (NTFS). Ensure the USB flash drive is in FAT32 format.
  • The USB flash drive is not supported. Use a different USB flash drive.

Reasons & solutions:

  • The USB flash drive has an incorrect file system (NTFS). Ensure the USB flash drive is in FAT32 format.
  • The USB flash drive is not supported. Use a different USB flash drive.

Reasons & solutions:

  • The storage space on the USB flash drive is occupied. Free up space on the USB flash drive by deleting unnecessary files.
  • The memory on the USB flash drive is too small. Use a larger-capacity USB flash drive.
  • The USB flash drive was removed during writing. Reconnect the USB flash drive. If the update has been cancelled, restart it.
  • The USB flash drive has an incorrect file system (NTFS). Ensure the USB flash drive is in FAT32 format.
  • The USB flash drive is not supported. Use a different USB flash drive.
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