Please Note: All electrical work must be performed by a licensed and CEC accredited electrician.
| Error Code | Description | Solution |
|---|---|---|
| 102 | AC voltage too high |
|
| 103 | AC voltage too low |
|
| 105 | AC frequency too high |
|
| 106 | AC frequency too low |
|
| 107 | AC grid outside allowed limits |
|
| 108 | Independent operation detected |
|
| 112 | A residual current monitoring unit (RCMU) error has occurred |
|
| 141 | Grid frequency jump too high |
|
| 301 | Excess AC Current | These faults generally fix themselves within a few hours. If the fault persists restart the system. If the error is still occurring,
|
| 302 | Excess DC Current | These faults generally fix themselves within a few hours. If the fault persists restart the system. If the error is still occurring,
|
| 303 | DC module overheating | These faults generally fix themselves within a few hours. If the fault persists restart the system. If the error is still occurring,
|
| 304 | AC module overheating | These faults generally fix themselves within a few hours. If the fault persists restart the system. If the error is still occurring,
|
| 305 | Power is not being fed in, although relay is closed | These faults generally fix themselves within a few hours. If the fault persists restart the system. If the error is still occurring,
|
| 306 | PV output is too low to feed | This fault will fix itself, if the fault keeps showing even when sufficient sunlight contact us. NOTE: These codes are shown at morning and night because of the low levels of sunlight at these times. |
| 307 | PV output is too low to feed | Shown morning and night because of the low levels of sunlight at these times. If persistent throughout day, submit a maintenance service request. |
| 308 | The intermediate circuit voltage is too high | These faults generally fix themselves within a few hours. If the fault persists restart the system. If the error is still occurring,
|
| 309 | DC input voltage MPPT 1 is too high | These faults generally fix themselves within a few hours. If the fault persists restart the system. If the error is still occurring,
|
| 311 | Polarity of the DC strings is reversed | These faults generally fix themselves within a few hours. If the fault persists restart the system. If the error is still occurring,
|
| 313 | DC input voltage MPPT 2 is too high | These faults generally fix themselves within a few hours. If the fault persists restart the system. If the error is still occurring,
|
| 314 | Current sensor calibration timeout | These faults generally fix themselves within a few hours. If the fault persists restart the system. If the error is still occurring, s
|
| 315 | AC current sensor error |
|
| 316 | Interrupt check fail |
|
| 317 | Unbalanced intermediate circuit voltage |
|
| 318 | DC back current detected |
|
| 325 | Connection area overheating |
|
| 326 | Error with fan 1 |
|
| 327 | Error with fan 2 |
|
| 401 | AC Voltage too high |
|
| 406-407 | Temperature sensor for AC module is faulty |
|
| 408 | DC component measures in the grid too high |
|
| 412 | Fixed voltage mode has selected instead of MPP voltage mode. Fixed voltage mode has been set at the wrong value. | Restart system. If code is ongoing
|
| 415 | Safety cut out has triggered via option card or RECERBO | Restart system. If code is ongoing submit a maintenance service request.
|
| 416 | Power stage set has no communication with control system | Restart system. If code is ongoing
|
| 417-419 | Hardwire ID issue | Inverter firmware needs to be updated. This needs to be done with enough daylight for whole update or the inverter will need to be replaced with likely no warranty.
|
| 420 | Unable to communicate with Hybrid manager | Inverter firmware needs to be updated. This needs to be done with enough daylight for whole update or the inverter will need to be replaced with likely no warranty.
|
| 421 | HID range error | Inverter firmware needs to be updated. This needs to be done with enough daylight for whole update or the inverter will need to be replaced with likely no warranty.
|
| 425 | Unable to communicate with the power stage set | Inverter firmware needs to be updated. This needs to be done with enough daylight for whole update or the inverter will need to be replaced with likely no warranty.
|
| 426-428 | Hardwire fault | Inverter firmware needs to be updated. This needs to be done with enough daylight for whole update or the inverter will need to be replaced with likely no warranty.
|
| 431 | Software fault | Conduct an AC reset (Switch the AC circuit breaker off and on) ‘ then update the inverter firmware as above. If the fault code continues to appear
|
| 436 | Functional incompatibility | Inverter firmware needs to be updated. This needs to be done with enough daylight for whole update or the inverter will need to be replaced with likely no warranty. |
| 437 | Power stage fault | Inverter firmware needs to be updated. This needs to be done with enough daylight for whole update or the inverter will need to be replaced with likely no warranty. |
| 438 | Functional incompatibility | Inverter firmware needs to be updated. This needs to be done with enough daylight for whole update or the inverter will need to be replaced with likely no warranty. |
| 443 | The intermediate circuit voltage is too low or asymmetric | Generally will correct itself within a few hours. If not, restart the system. |
| 445 | Compatibility fault. Invalid power stage set configuration. | As per code 436 |
| 447 | Insulation problem | Generally will correct itself within a few hours. If not, restart the system. If code stays on for a prolonged period
|
| 448 | The neutral conducted ios not connected | Generally will correct itself within a few hours. If not, restart the system. If code stays on for a prolonged period
|
| 450 | The guard can’t be found | Generally will correct itself within a few hours. If not, restart the system. If code stays on for a prolonged period
|
| 451 | Memory fault detected | Generally will correct itself within a few hours. If not, restart the system. If code stays on for a prolonged period
|
| 452 | Communication problem between processors | Installer to attend site and disconnect / reconnect terminals and tighten screws. |
| 453 | Power stage set and grid voltage not compatible. | Customer restart system, then monitor over a few days. If the system is continually showing the fault for approx. 3 days request a maintenance service request.
|
| 454 | Power stage set and grid frequency not compatible. | Customer restart system, then monitor over a few days. If the system is continually showing the fault for approx. 3 days request a maintenance service request.
|
| 456 | Anto-islanding function is no longer implemented correctly | Customer restart system, then monitor over a few days. If the system is continually showing the fault for approx. 3 days request a maintenance service request.
|
| 457 | The grid relay sticking or the neutral conductor ground voltage is too high | Send installer to site to check grounding. Neutral conductor ground voltage has to be less than 30V. Submit a maintenance service request.
|
| 458-459 | Issues when recording the measuring signal | Restart the system. Check there are no firmware updates. Leave for 24 hours if the fault still persists
|
| 460 | Reference voltage source for the DSP is working out of tolerance | Restart the system. Check there are no firmware updates. Leave for 24 hours if the fault still persists
|
| 461 | Error with DSP data memory | Restart the system. Check there are no firmware updates. Leave for 24 hours if the fault still persists
|
| 462 | Fault with the DC feed monitoring routine | Restart the system. Check there are no firmware updates. Leave for 24 hours if the fault still persists
|
| 463 | Reversed AC Polarity | The AC connector has been incorrectly inserted. This should not occur unless the customer has been fiddling with the system or they have had works done onsite and another technician has touched/changed the install.
|
| 474 | RCMU sensor is faulty |
|
| 475 | Insulation fault. The connection between the solar panel and ground is faulty |
|
| 476 | The driver supply voltage is too low | Restart system, if still present,
|
| 479 | Immediate circuit relay has switched off | Restart system, if still present after an hour or two,
|
| 480-481 | Inverter firmware need to be updated. This needs to be done with enough daylight for whole update or the inverter will need to be replaced with likely no warranty. Submit a maintenance service request. | Restart system, if still present after an hour or two,
|
| 482 | The setup phase after initial startup was interrupted | Full system restart required. Turn of AC circuit breaker, after 5 minutes turn back on, then after another 5-10 minutes restart the system. Complete during daylight hours. |
| 483 | The voltage UDC fixed on MPP2 string is out of limit | Send installer to site to check MPP settings. If correct and persisting, complete full restart including AC circuit breaker, if still persisting contact Fronius.
|
| 485 | CAN transmit buffer is full | Conduct AC reset (turn off, wait 5 minutes and turn on again) |
| 489 | Permanent intermediate circuit capacitor over voltage |
|
| 502 | Insulation fault on the solar panels | Generally will correct itself within a few hours. If not, restart the system. If code stays on for a prolonged period
|
| 509 | No energy has been fed into the grid in the last 24 hours | Ensure no power outages in the area. If persistent for 2 days or more
|
| 515 | Unable to communicate with filter | Generally will correct itself within a few hours. If not, restart the system. If code stays on for a prolonged period
|
| 516 | Unable to communicate with the storage unit | Generally will correct itself within a few hours. If not, restart the system. If code stays on for a prolonged period
|
| 517 | No energy has been fed into the grid by MPPT 1 in the past 24 hours | Check nothing is blocking inverter air openings, if blocked, remove as these need to be clear. The fault should clear within 5 minutes but if not, restart the system. If the fault is still persistent, inverter may need to be replaced. S
|
| 518 | Internal DSP fault | Check nothing is blocking inverter air openings, if blocked, remove as these need to be clear. The fault should clear within 5 minutes but if not, restart the system. If the fault is still persistent, inverter may need to be replaced.
|
| 519 | Unable to communicate with storage unit | Check nothing is blocking inverter air openings, if blocked, remove as these need to be clear. The fault should clear within 5 minutes but if not, restart the system. If the fault is still persistent, inverter may need to be replaced.
|
| 520 | No energy has been fed into the grid by MPPT 1 in the past 24 hours | Check nothing is blocking inverter air openings, if blocked, remove as these need to be clear. The fault should clear within 5 minutes but if not, restart the system. If the fault is still persistent, inverter may need to be replaced.
|
| 522 | DC is low in string 1 | Check nothing is blocking inverter air openings, if blocked, remove as these need to be clear. The fault should clear within 5 minutes but if not, restart the system. If the fault is still persistent, inverter may need to be replaced.
|
| 523 | DC is low in string 2 | Check nothing is blocking inverter air openings, if blocked, remove as these need to be clear. The fault should clear within 5 minutes but if not, restart the system. If the fault is still persistent, inverter may need to be replaced.
|
| 528-529 | There is a functional incompatibility (one or more of the PC boards are not compatible) | Inverter firmware needs to be updated. This needs to be done with enough daylight for whole update or the inverter will need to be replaced with likely no warranty. |
| 560 | Grid frequency has become excessively high which is causing derating | Fault will fix itself, only requires attention if the fault occurs for a prolonged period of time.
|
| 564 | See error 528-529 | |
| 566 | Arc Detector has been deactivated | Press enter (4th button from the left) wait 5 minutes and error should be clear. |
| 567 | The GVDPR is active and inverter will operate with reduced power output | System is still working but at slightly reduced power, code should clear itself within a few hours. If not
|
| 601 | CAN bus is full | Inverter firmware needs to be updated. This needs to be done with enough daylight for whole update or the inverter will need to be replaced with likely no warranty. |
| 603 | AC module sensor is faulty | Restart system, if still present
|
| 604 | DC module sensor is faulty | Restart system, if still present
|
| 607 | RCMU Fault | Press enter (4th button from the left) wait 5 minutes and error should be cleared. |
| 608 | See error 528-529 | |
| 609 | Configuration value out of limits |
|
| 701-730 | Information about the internal processors status | Fault should clear itself within a few hours. If persistent, restart the system. If problem still not resolved
|
| 721 | EEPROM has been reinstalled | Fault should clear itself within a few hours. If persistent, restart the system. If problem still not resolved
|
| 722-730 | Information about the internal processors status | Fault should clear itself within a few hours. If persistent, restart the system. If problem still not resolved
|
| 731 | USB flash drive not supported | Check the USB flash drive and files, may need to be replaced.
|
| 732 | Initialisation error with USB flash drive | Check the USB flash drive and files, may need to be replaced.
|
| 733 | USB flash drive not connected | Check the USB flash drive and files, may need to be replaced.
|
| 734 | Update file missing or not recognised | Check for updates to Firmware. Run update if required and fault should be cleared. If not, restart the system and if the error still occurs
|
| 735 | Update file too old | Contact Fronius to check USB drive and files, may need to be replaced. Have photos of code and inverter serial handy for call.
|
| 736 | Write or read error | Contact Fronius to check USB drive and files, may need to be replaced. Have photos of code and inverter serial handy for call.
|
| 737 | Unable to open file | Contact Fronius to check USB drive and files, may need to be replaced. Have photos of code and inverter serial handy for call.
|
| 738 | Unable to save log file | Contact Fronius to check USB drive and files, may need to be replaced. Have photos of code and inverter serial handy for call. Submit a maintenance service request. |
| 740 | Error in file system | Contact Fronius to check USB drive and files, may need to be replaced. Have photos of code and inverter serial handy for call.
|
| 741 | Error recording logging data | Contact Fronius to check USB drive and files, may need to be replaced. Have photos of code and inverter serial handy for call.
|
| 743 | Error during update | Contact Fronius |
| 745 | Update file corrupt | Contact Fronius |
| 746 | Error while updating | Contact Fronius |
| 751 | Time lost | Time and date on inverter needs to be reset.
|
| 752 | Communication error with real time clock module | Time and date on inverter needs to be reset.
|
| 753 | Real time clock module is in emergency mode | Time and date on inverter needs to be reset.
|
| 754-755 | Information about the processors status | Fronius needs to be contacted, generally they will want an installer onsite but can try without if the code is persistent. |
| 757 | Real time clock module hardware error | Fronius needs to be contacted, generally they will want an installer onsite but can try without if the code is persistent. |
| 758 | Real time clock module is in emergency mode | Time and date on on inverter needs to be reset. If code does not clear instantly restart the system. |
| 760 | Internal hardware fault |
|
| 761-765 & 767 | Information about internal processors status |
|
| 766-733 | Emergency power derating has triggered | Restart inverter, if problem persists
|
| 775 | PMC power stage set unavailable | Press enter on the inverter (4th button from left). If problem still persists contact Fronius. |
| 776 | Device type invalid | Press enter on the inverter (4th button from left). If problem still persists contact Fronius. |
| 779 | CAN bus transmission error | Contact Fronius. |
| 781-794 | Information about internal processors status | Contact Fronius. |
