5 Appaloosa Court
Mudgeeraba, QLD 4213
Solar System Products | Gold Coast Energy
Inverter Fault Codes

Fonius Fault Codes

Need help with an inverter fault code? Is your Fronius inverter displaying a Fault Code?

We have been Fronius Service Partners since 2011 and can provide assistance with any and all Inverter Fault Codes.

To further assist you, we will need the following:

  • Inverter Fault codes displayed
  • Inverter model and no.
  • Serial no.
  • Purchase date – establishes warranty expiry date

 

Next step – One of our service specialists will consult with Fronius and if necessary initiate the exchange of components for Fronius products or a whole device.

The site visit from our trained Solar Electrician can have your solar system up and running in usually one visit, as we bring all the parts to your door. This is one reason we love dealing with Fronius products, they make it so easy to get you back up and generating energy from the sun again!

Please browse the tables below for the specific fault code information your inverter is displaying. Using a smartphone? Please click here to access the Fronius fault code page for mobile.

Code Description Possible Causes Troubleshooting Steps
STATE 101 Grid voltage beyond permitted limits
  1. Mains voltage error
  2. Incorrect values in the service menu
  3. Internal fault
  1. Check grid voltage, check circuit breakers are ON
  2. Change Values in the service menu
  3. If problem persists please contact Gold Coast Energy
STATE 104 Mains frequency beyond permitted limits
  1. Mains frequency error
  2. Incorrect values in the service menu
  3. Internal fault
  1. Check mains frequency, check circuit breakers are ON
  2. Change values in the service menu
  3. If problem persists please contact Gold Coast Energy
STATE 107 Synchronisation with the public mains supply not possible
  1. Mains not connected
  2. Incorrect values in the service menu
  3. Internal fault
  1. Check mains power, check circuit breakers are ON
  2. Change values in the service menu
  3. If problem persists please contact Gold Coast Energy
STATE 108 Islanding detected
  1. Islanding detected
  2. Severe disturbances in public mains
  3. Internal fault
  1. Automatic correction
  2. If problem persists please contact Gold Coast Energy
Code Description Possible Causes Troubleshooting Steps
STATE 201 Grid voltage is higher than the specified limit
  1. Grid voltage error on the public mains
  2. Internal fault
  1. Check grid voltage
  2. If problem persists, please contact Gold Coast Energy
STATE 202 Grid voltage is lower than the specified limit
STATE 203

Grid frequency is higher than the specified limit

  1. Grid frequency error on the public mains
  2.  Internal fault
  1. Check grid frequency
  2. If problem persists, please contact Gold Coast Energy
STATE 204 Grid frequency is lower than the specified limit
STATE 205 Change of public mains impedance
  1. Serious disturbances on the public mains
  2. Internal fault
  1. Reinforce mains cables
  2. Connect Fronius IG inverter to another phase
  3. If problem persists please contact Gold Coast Energy
STATE 206 Absolute value of the impedance is too high
  1. Mains impedance too high
  2. Internal fault
STATE 207

Mains relay does not open in spite of switch off signal

  1. Internal fault
  1. If problem persists, please contact Gold Coast Energy
STATE 208

Mains relay does not close in spite of switch on signal

Code Description Possible Causes Troubleshooting Steps
STATE 301 Safety circuit detects a current peak on the mains supply
  1. Voltage drop on the public mains
  2. Internal fault
  1. Automatic correction
  2. If problem persists please contact Gold Coast Energy
STATE 302 Safety circuit detects a current peak on the PV generator side
  1. Voltage drop on the public mains supply
  2. Internal fault
  1. Automatic correction
  2. If problem persists please contact Gold Coast Energy
STATE 303 Heat sink temperature on the DC-AC board is too high
  1. Ventilation slot congested
  2. Very high ambient temperature
  3. Distance between inverters too small
  4. Internal fault
  1. Free ventilation slot
  2. Change location of inverter
  3. Increase distance between inverters
  4. If problem persists please contact Gold Coast Energy
STATE 304 Heat sink temperature on the DC-DC board is too high
STATE 305 Feed-in process not possible, even though public mains parameter within the limits
  1. Internal Fault
  1. If problem persists please contact Gold Coast Energy
STATE 306 POWER LOW
  1. Intermediate circuit voltage has dropped below permissible threshold value for feed-in
  1. Check panels
  2. Internal fault
  3. If problem persists, please contact Gold Coast Energy
STATE 307 DC LOW
  1. DC-input voltage is too low for feed in
  2. Internal fault
STATE 308 Intermediate circuit voltage out of the maximum limit
  1. Public mains disturbances
  2. Internal fault
  1. Reinforce mains cable
  2. If problem persists, please contact Gold Coast Energy
Code Description Possible causes Troubleshooting Steps
STATE 401 Communication error between IG control and the DC-DC board
  1. Internal fault
  1. If problem persists please contact Gold Coast Energy
STATE 402 Write access to the internal Fronius IG memory failed
STATE 403 The area in the internal memory for the country setting is incomplete
STATE 404 Connection between the control unit and the ENS is faulty
  1. Public mains not connected
  2. Internal fault
  1. Check the public mains
  2. If problem persists please contact Gold Coast Energy
STATE 405 An old or incorrect version of the ENS microprocessors has been recognised
  1. Internal fault
  1. If problem persists please contact Gold Coast Energy
STATE 406 Temperature sensor on the DC-AC board faulty or not connected
STATE 407 Temperature sensor on the DC-DC board faulty or not connected
STATE 408 Unsymmetry on the public mains detected
  1. Public mains disturbances
  2. Internal fault
  1. Error is remedied automatically
  2. If problem persists please contact Gold Coast Energy
STATE 409 Supply of the DC-AC board not available
  1. Internal fault
  1. If your problem persists please contact Gold Coast Energy
STATE 410 Service plug on the DC-AC board is not set correctly
STATE 412 Value for fixed voltage is set higher than the open circuit voltage of the PV generator
STATE 413 Open circuit voltage too high in the moment of transformer switching
STATE 414 Memory array for Fronius IG type in EE-PROM faulty
  1. One-off-memory error
  2. Internal fault
  1. Error is remedied automatically
  2. If problem persists please contact Gold Coast Energy
STATE 415 No END-enabling signal despite release by IG-control
  1. Internal fault
  1. If problem persists please contact Gold Coast Energy
STATE 416 Communication error between IG-Control and power stack
  1. One-off-communication error
  2. Internal fault
  1. Error is remedied automatically
  2. If problem persists please contact Gold Coast Energy
STATE 417 Hardware ID-collision
  1. Internal fault
  1. If problem persists please contact Gold Coast Energy
STATE 419 Two or more power stacks with identical Unique ID
STATE 420 Incomplete number of power stacks detected after reaching online threshold according to device type
STATE 421 Hardware ID sequence error
STATE 425 Receive time-out for data exchange with one or more power stacks exceeded
  1. One-off error
  2. Internal fault
  1. Automatic correction
  2. If problem persists please contact Gold Coast Energy
STATE 431 All power stacks are in boot mode
  1. Internal fault
  1. If problem persists please contact Gold Coast Energy
STATE 432 Consistent error in power stack management
  1. One-off error
  2. Internal fault
  1. Automatic correction
  2. If problem persists please contact Gold Coast Energy
STATE 433 Allocation error of dynamic addresses
STATE 434 Ground fault detected
STATE 435 Wrong configuration for EE-Prom
STATE 436 Error transmission faulty
STATE 437 Power stack work around is active
STATE 438 Error during state code transmission
  1. One-off error
  2. Permanent error
  1. Automatic correction
  2. If problem persists please contact Gold Coast Energy
STATE 441 Power rack fan faulty
  1. Internal fault
  1. If problem persists please contact Gold Coast Energy
STATE 442 Master for one phase could not be assigned
  1. Temporary communication error
  2. Internal fault
  1. Error is remedied automatically
  2. If problem persists please contact Gold Coast Energy
STATE 443 DC-DC energy transfer failure
  1. Error during switching on a power stack
  2. Internal fault
  1. Error is remedied automatically
  2. If problem persists please contact Gold Coast Energy
STATE 444 AC monitoring self-test interrupted
  1. During the self-test another error occured
  1. Quit the self-test by pressing ESC and remedy the failure according to the error code list
Code Description Possible causes Troubleshooting Steps
STATE 501 Heat sink temperature too high, although Fronius IG is on low output
  1. Ventilation slot congested
  2. Internal fault
  1. Free ventilation slot
  2. If problem persists please contact Gold Coast Energy
STATE 502 An isolation fault between DC+ or DC- to earth has been detected
  1. Isolation fault at the solar generator
  1. Check cables and solar generator
STATE 504 An error occured while scanning LocalNet addresses
  1. Identical Fronius IG address used twice
  1. Check address of the inverters and other components
STATE 505 The area in the internal memory for the “Setup” values is incomplete
  1. One-off error
  2. Internal fault
  1. Automatic correction
  2. If problem persists please contact Gold Coast Energy
STATE 506 The area in the internal memory for the “Total” values is incomplete
STATE 507 The area in the internal memory for the “Day/Year” values is incomplete
STATE 508 The area in the internal memory for the “WR number” is damaged
STATE 509 No feed in operation for 24 hours
  1. Snow covered or very dirty solar panels
  2. Insufficient power from the solar panels for feed-in operation
  3. Internal error
  1. Clean solar panels or remove snow
  2. If problem persists please contact Gold Coast Energy
STATE 510 Errors detected by LocalNet self diagnostic system
  1. One-off memory error
  2. Internal fault
  1. Automatic correction
  2. If problem persists please contact Gold Coast Energy
STATE 511 Errors detected by LocalNet Sensor Card self diagnostic system
STATE 512 According to the device type too many power stacks have been detected
  1. One-off error
  2. Internal fault
STATE 513 Power stacks in boot mode
STATE 514 Incomplete number of power stacks detected after reaching online threshold – Device type
STATE 515 One or more power stacks notified STATE 406/ 407/ 409/ 410
  1. Internal fault
  1. If problem persists please contact Gold Coast Energy
STATE 516 One power stack exceeds the permitted limit of error messages per day (>50x)
STATE 517 Permanent POWER LOW or DC LOW error
Solar System Products | Gold Coast Energy

Zeversolar Fault Codes

Is your Zeversolar inverter displaying a Fault Code?

We have been Zeversolar Service Partners since 2015 and can provide assistance with any and all Fault Codes.

To further assist you, we will need the following:

  • Fault code displayed
  • Inverter model and no.
  • Serial no.
  • Purchase date – establishes warranty expiry date

 

Please browse the tables below for the specific fault code information your inverter is displaying.

Code Troubleshooting Steps
Error Code 6
  1. Check the open-circuit voltages of the strings and make sure it is below the maximum DC voltage of the inverter
  2. If the input voltage is within the permitted range and the fault still occurs, it might be that the internal circuit has broken
  3. Please contact Gold Coast Energy
Error Code 33
  1. Check the grid frequency and observe how often major fluctuations occur.
  2. If this fault is caused by frequent fluctuations, try to modify the operating parameters after informing the grid operator first
  3. Please contact Gold Coast Energy
Error Code 34
  1. Check the grid voltage and grid connection on the inverter.
  2. Check the grid voltage at the point of connection of the inverter. If the grid voltage is outside the permissible range due to local grid conditions, try to modify the values of the monitored operational limits after informing the electric utility company first.
  3. If the grid voltage lies within the permitted range and this fault occurs, please contact Gold Coast Energy.
Error Code 35
  1. Check the fuse and the triggering of the circuit breaker in the distribution box.
  2. Check the grid voltage, grid usability.
  3. Check the AC cable, grid connection on the inverter. If this fault is still being shown, please contact Gold Coast Energy.
Error Code 36
  1. Make sure the grounding connection of the inverter is reliable.
  2. Make a visual inspection of all PV cables and modules.
  3. If this fault is still shown, please contact Gold Coast Energy.
Error Code 37
  1. Check the open-circuit voltages of the strings and make sure it is below the maximum DC input voltage of the inverter.
  2. If the input lies within the permitted range and the fault still occurs, please contact Gold Coast Energy.
Error Code 38
  1. Check the PV array’s insulation to ground and make sure that the insulation resistance to ground is greater than 1M0hm. Otherwise, make a visual inspection of all PV cables and modules.
  2. Make sure the grounding connection of the inverter is reliable. If this fault occurs often, please contact Gold Coast Energy.
Error Code 40
  1. Check whether the airflow to the heat sink is obstructed.
  2. Check whether the ambient temperature around the inverter is to high.
Error Code 41, 42, 43, 44, 45
  1. Disconnect the inverter from the grid and the PV array and reconnect after 3 minutes.
  2. If this fault is still being shown, please contact Gold Coast Energy
Error Code 46
  1. Check the open-circuit voltages of the strings, make sure it is lower that the Max. DC input voltage of the inverter.
  2. If the input voltage lies within the permitted range, and the fault still occurs, maybe the internal circuit has broken.
  3. Please contact Gold Coast Energy.
Error Code 48
  1. External fault, requires technical visit.
  2. Please contact Gold Coast Energy.
Error Code 49, 50
  1. Open the box and check the power distortion, see if the signal cable of PV1-SPD and PV2-SPD has disconnected.
  2. If the fault still occurs, please contact Gold Coast Energy.
Error Code 51
  1. Open the box and check the power distribution, see if the FUSE is damaged.
Code Troubleshooting Steps
Error Code 1
  1. Disconnect the inverter from the utility grid and the PV array and reconnect it after 3 minutes.
  2. If this fault is still being displayed, please contact Gold Coast Energy
Error Code 2
Error Code 3
Error Code 4
Error Code 5
Error Code 6
Error Code 8
Error Code 9
Error Code 10
Error Code 11
Error Code 39

If you are having any issues troubleshooting your fault code, please do not hesitate to contact Gold Coast Energy. You are also welcome to fill out the contact form below and our service staff will respond to you and your inquiry as quickly as possible.

First Name *

Last Name

Suburb *

Email *

Phone *

What type of installation?

How much is the electricity cost per quarter?*

Message