The following tables list the inverter error codes that you might see. You will notice that a lot of the codes are due to grid voltage variations which the inverter responds to. There is no fault with these and nothing to be done until the grid voltage normalizes. For many of the others, the appropriate response is to contact us here at EnviroGroup Service and we can make an assessment by logging into your inverter portal if you have one and checking it out. Quite often, issues can be resoloved without the need for a call-out. If a fault is found, our service team will respond to it right away.

SMA SUNNYBOY 2000HF / 2500HF / 3000HF

 

Error Display

Meaning

Solution

1 < Grid fault >

The line voltage is above the acceptable maximum and the inverter has disconnected from the grid as a safety measure.

 

Check the grid voltage and connection on the inverter.

 

If the voltage is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the voltage is within the tolerance range and the error code remains, contact us for an inspection.

 

2 < Grid fault >

The line voltage is below the acceptable minimum and the inverter has disconnected from the grid as a safety measure.

Check for tripping of the miniature circuit-breaker.

 

Check the grid voltage and connection on the inverter.

 

If the voltage is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the voltage is within the tolerance range and the error code remains, contact us for an inspection.

 

3 < Grid fault >

 

The average voltage over 10 minutes is not within the acceptable range. The inverter has disconnected.

Check the grid voltage and connection on the inverter.

 

If the voltage is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the voltage is within the tolerance range and the error code remains, contact us for an inspection.

 

4 < Grid fault >

 

The inverter is no longer in grid parallel operation and has stopped feedin operation for safety reasons.

 

Check the grid connection for strong, shortterm frequency variations.

5 < Grid fault >

 

The power frequency is outside the acceptable range. The inverter has disconnected itself from the grid as a safety measure.

 

Check the power frequency - if there are frequent major fluctuations, discuss with your grid operator.

6 < Grid fault >

 

The inverter has detected high proportion of direct current in the grid current

Check the grid connection for direct current. If the problem persists, seek advice from your utility grid supplier.

 

7 < Frq. not permitted >

 

The power frequency is outside the acceptable range. The inverter has disconnected itself from the grid as a safety measure.

Check the power frequency - if there are frequent major fluctuations, discuss with your grid operator.

 

8 < Waiting for grid voltage >

< Grid failure >

< Check fuse >

 

Faulty fuse, faulty ac installation, general power outage

Check fuse.

 

Check AC installation.

 

Check whether there is a general power outage.

 

33 < Unstable operation >

 

There is not enough power at the DC input of the inverter for stable operation.

 

Check there is nothing obstructing the panels.

 

Wait for more sunlight.

 

If there is nothing blocking the panels and it is sunny, contact us for a consultation

 

34< DC overvoltage >

< Disconnect generator >

 

The DC input voltage connected to the inverter is too high

Immediately disconnect the inverter from the PV array.

 

Call EnviroGroup for an inspection of the string voltage before reconnecting to ensure the inverter won’t be damaged by high input.

35< Insulation resist. >

< Check generator >

The inverter has detected a ground fault in the PV array. The inverter continues feeding into the grid.

 

Call EnviroGroup to check your system for ground faults

 

35 < Ground fuse fault >

< Check ground fuse >

 

The inverter has detected a ground voltage in the grounding path.

 

Check the ground fuse.

 

Check the strings for ground faults.

 

Contact EnviroGroup to remedy and reconnect the affected string.

 

38 < DC overcurrent >

< Check generator >

 

The inverter switches off due to an overcurrent on the DC side.

 

If this event occurs frequently call EnviroGroup for a consultation

 

39< Waiting for DC start conditions >

< Start cond. not met >

 

The feedin power or feedin voltage of the PV modules is insufficient for feeding into the power distribution grid.

 

Check that there are no obstructions to the panels

 

Wait for more sunlight

 

If the error code appears when there is sunlight and the panels are clear, call EnviroGroup for a consultation

42< Wrong earthing type; check earthing set >

 

The SMA Plugin Grounding polarity does not correspond to the polarity set in the inverter.

 

Contact EnviroGroup to correct the grounding type.

 

60, 61, 62, 63, 64

< Self diagnosis >

< Interference device >

 

Internal error

Contact EnviroGroup for a consultation

65< Self diagnosis >

< Over-temperature >

 

The temperature is too high, the inverter switches off

Check ventilation

Check heat dissipation

Call EnviroGroup for a consultation

66< Self-diagnosis >

< Overload >

 

The system is experiencing overload

Call EnviroGroup for a consultation

67 < Comm. disturbed >

 

A fault has occurred in the internal communication of the inverter. However, the inverter continues feeding into the grid

If this event occurs frequently, call EnviroGroup for a consultation

68< Self-diagnosis >

< Input A defective >

 

 

Call EnviroGroup for a consultation

70< Sensor fault fan permanently on >

 

Call EnviroGroup for a consultation

71< SD card defective >

The SD card is faulty

Re-format the SD card

 

71 < Parameter file not found or defective >

 

The parameter file is faulty

Copy the parameter file into the card drive:\PARASET directory.

71 < Param. setting failed >

 

The parameter file is faulty

• Check the parameters for valid values.

• Ensure change rights via SMA Grid Guard Code.

71 < Update file defect. >

The parameter file is faulty

• Reformat the SD card.

• Resave the files to the SD card.

71 < No update file found>

The parameter file is faulty

• Copy the update file into the SD card drive:\UPDATE directory.

 

72 < Data stor. not poss. >

 

An internal device fault that does not prevent the inverter from feeding power to the grid.

 

If this event occurs frequently, call EnviroGroup for a consultation

73 < Update main CPU failed >

Internal device fault.

 

Call EnviroGroup for a consultation

< Update RS485I module failed >

 

An internal device fault that does not prevent the inverter from feeding power to the grid.

 

Retry update. If this fault occurs again, call EnviroGroup for a consultation

 

< Update Bluetooth failed >

 

An internal device fault that does not prevent the inverter from feeding power to the grid.

 

Retry update. If this fault occurs again, call EnviroGroup for a consultation

< Upd. display failed >

 

An internal device fault that does not prevent the inverter from feeding power to the grid.

 

Retry update. If this fault occurs again, call EnviroGroup for a consultation

< Update language table failed >

An internal device fault that does not prevent the inverter from feeding power to the grid.

 

Retry update. If this fault occurs again, call EnviroGroup for a consultation

74 < Varistor defective >

There is a fault with the varistor

Call EnviroGroup for a consultation

 

75 < Fan fault >

< Clean fan >

 

There is a blockage or fault with the inverter fan

Check fan

Check heat disspation

77< Self

diagnosis >

< Interference device >

The inverter has encountered a fault.

Call EnviroGroup for a consultation

 

80 < Derating occurred >

 

The power supplied by the inverter was reduced to below the nominal power due to high temperature for more than10 minutes.

 

Check ventilation

Check heat dissipation

 

81 < Comm. disturbed >

 

A fault has occurred in the internal communication of the inverter. However, the inverter continues feeding into the grid.

If this event occurs frequently, Call EnviroGroup for a consultation

 

90 < Inst. code invalid >

 

 

 

The SMA Grid Guard Code entered (personal installer password) is invalid.

 

Enter a valid SMA Grid Guard Code

 

90 < Grid param. locked >

 

The current country data set is locked.

 

Enter the valid SMA Grid Guard Code for changing the country data set.

 

90 < Abort selftest >

 

The self-test has been aborted.

Contact EnviroGroup for a consultation

 

90 < Changing grid param. not possible >

 

The selected rotary switch setting for the country configuration is not programmed.

• The parameters to be changed are protected.

 

Check the setting of the rotary switch (see section 5.3.2 "Checking the Country Standard" (page 24)).

• Enter the SMA Grid Guard Code.

 

90 < Ensure DC supply >

 

The DC voltage for the writing procedure is not sufficient.

 

• Ensure that sufficient DC voltage is available.

 

 


SUNNY BOY 3000TL / 3600TL / 4000TL / 5000TL / 6000TL

 

Error Display

Meaning

Solution

101 to 103 - Grid fault

The grid voltage or grid impedance at the connection point of the inverter is too high. The inverter has disconnected from the utility grid.

Check the grid voltage and connection on the inverter.

 

If the voltage is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the voltage is within the tolerance range and the error code remains, contact us for an inspection.

202 to 203, 205 - Grid fault

The utility grid has been disconnected, the AC cable is damaged or the grid voltage at the connection point of the inverter is too low. The inverter has disconnected from the utility grid.

Make sure that the circuit breaker is switched on

 

Make sure that the AC cable is not damaged.

 

Make sure that the AC cable is correctly connected.

 

Check the grid voltage and connection on the inverter.

 

If the voltage is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the voltage is within the tolerance range and the error code remains, contact us for an inspection.

301 - Grid fault

The average voltage over 10 minutes is not within the acceptable range. The inverter has disconnected.

Check the grid voltage and connection on the inverter.

 

If the voltage is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the voltage is within the tolerance range and the error code remains, contact us for an inspection.

401 - Grid fault

The inverter is no longer in grid-parallel operation.

Check the grid connection for significant short-term frequency fluctuations

 

If the problem persists, contact EnviroGroup for a consultation or ask your utility grid supplier.

501 - Grid fault

The power frequency is outside the acceptable range. The inverter has disconnected itself

The power frequency is outside the acceptable range. The inverter has disconnected itself

601 - Grid fault

The inverter has detected high proportion of direct current in the grid current

Check the grid connection for direct current. If the problem persists, seek advice from your utility grid supplier.

 

701 - Frq. not permitted > Check parameter

The power frequency is outside the acceptable range. The inverter has disconnected itself

The power frequency is outside the acceptable range. The inverter has disconnected itself

801 - Waiting for grid voltage > Grid failure > Check AC circuit breaker

The AC cable is not correctly connected or the country data set is not correctly configured.

Ensure that the AC cable is correctly connected (see the operating manual of the inverter).

 

Ensure that the country data set has been configured to Australia

 

Check the fuse

901 - PE conn. missing > Check connection

There is an issue with the grounding conductor

Call EnviroGroup for a consultation

1001 - L/N swapped > Check connection

The connection of L and N is swapped.

Call EnviroGroup for a consultation

1501 - Reconnection fault grid

The country data is not configured correctly

Check the country your inverter is configured to

Call EnviroGroup for a consultation

3301 to 3303 - Unstable operation

The average voltage over 10 minutes is not within the acceptable range. The inverter has disconnected.

Check the grid voltage and connection on the inverter.

 

If the voltage is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the voltage is within the tolerance range and the error code remains, contact us for an inspection.

 

3304 - Gen. output too low

There is not enough power at the DC input of the inverter for stable operation.

 

Check there is nothing obstructing the panels.

 

Wait for more sunlight.

 

If there is nothing blocking the panels and it is sunny, contact us for a consultation

 

3401 to 3402 -DC overvoltage > Disconnect generator

The DC input voltage connected to the inverter is too high

Immediately disconnect the inverter from the PV array.

 

Call EnviroGroup for an inspection of the string voltage before reconnecting to ensure the inverter won’t be damaged by high input.

3501 - Insulation failure > Check generator

The inverter has detected a ground fault in the PV array.

Call EnviroGroup to check your system for ground faults

3601 - High discharge curr. > Check generator

The leakage currents of the inverter and the PV array are too high. There is a ground fault, a residual current or a malfunction.

Call EnviroGroup to check your system for ground faults

3701 - Resid.curr.too.high > Check generator

The inverter has detected a residual current due to temporary grounding of the PV array.

Call EnviroGroup to check your system for ground faults

3801 to 3802 - DC overcurrent > Check generator

The inverter switches off due to an overcurrent on the DC side.

 

If this event occurs frequently call EnviroGroup for a consultation

 

3901 to 3902 - Waiting for DC start conditions > Start cond. not met

The feedin power or feedin voltage of the PV modules is insufficient for feeding into the power distribution grid.

 

Check that there are no obstructions to the panels

 

Wait for more sunlight

 

If the error code appears when there is sunlight and the panels are clear, call EnviroGroup for a consultation or speak to your utility grid supplier

6001 to 6438 - Self-diagnosis > Interference device

The inverter has detected interference

If this event occurs frequently call EnviroGroup for a consultation

6501 to 6502 - Self-diagnosis > Overtemperature

The temperature is too high, the inverter switches off

Check ventilation

Check heat dissipation

Call EnviroGroup for a consultation

7008 - Disturbance sensor display temperature

 

If this event occurs frequently call EnviroGroup for a consultation

7101 - SD card defective

The SD memory card is not formatted.

Re-format the SD memory card.

 

Re-save the files to the SD memory card

7102 - Parameter file not found or defective

The parameter file was not found or is defective. The update failed. The inverter continues feeding power into the grid.

If this event occurs frequently call EnviroGroup for a consultation

7105 - Param. setting failed

It was not possible to set the parameter via the SD memory card. The inverter continues feeding power into the grid.

Check the parameters for valid values. Ensure change rights via SMA Grid Guard code.

 

7106 - Update file defect.

Update file on the SD memory card is faulty

Re-format the SD memory card.

 

Re-save the files to the SD memory card

7110 - No update file found

No update file has been found.

Copy the update file in the SD memory card folder. Select the folder \UPDATE.

7201 to 7202 -Data stor. not poss..

Internal error. The inverter continues to feed into the utility grid

 

Contact EnviroGroup for a consultation.

7303 - Update main CPU failed

The latest update failed.

Contact EnviroGroup for a consultation.

7305 - Update RS485I module failed

Internal error. The inverter continues to feed into the utility grid.

Update the inverter firmware.

 

If this code is consistently displayed after the update, contact EnviroGroup for a consultation.

7307 - Update BT failed

Internal error. The inverter continues to feed into the utility grid.

Update the inverter firmware.

 

If this code is consistently displayed after the update, contact EnviroGroup for a consultation.

7311 - Update language table failed

Internal error. The inverter continues to feed into the utility grid.

Update the inverter firmware.

 

If this code is consistently displayed after the update, contact EnviroGroup for a consultation.

7401 - Varistor defective

At least one of the thermally monitored varistors is defective

Contact EnviroGroup for a consultation.

7508 - External fan fault

The external fan is defective or blocked

Ensure that the fan is clean.

 

Ensure that the external fan is correctly connected

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

8001 - Derating occurred

The inverter has reduced its power output for more than ten minutes due to excessive temperature.

Clean the cooling fins on the rear of the enclosure and the air ducts on the top using a soft brush.

 

Ensure that the inverter has sufficient ventilation.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

8801 to 8803 - No display

There is a display error

Contact EnviroGroup for a consultation.

9002 - Inst. code invalid

The SMA Grid Guard code entered is incorrect.

Enter the correct SMA Grid Guard code.

9003 - Grid param. locked

The parameters are now locked. You cannot change the parameters.

Unlock the parameters with the SMA Grid Guard code.

9005 - Changing grid param. not possible > Ensure DC supply

The selected rotary switch setting for the country configuration is not programmed.

 

The parameters to be changed are protected.

 

The DC voltage at the DC input is not sufficient to run the main CPU

Ensure that the country data set has been configured correctly.

 

Enter the SMA Grid Guard code.

 

Ensure that sufficient DC voltage is available (green LED is glowing or flashing).

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

 

 

 

Fronius Codes

 

Error Display

Meaning

Solution

STATE 102

AC voltage too high

Check connection to the grid.

 

If the problem persists, contact EnviroGroup for a consultation or ask your utility grid supplier.

STATE 103

AC voltage too low

Check connection to the grid.

 

If the problem persists, contact EnviroGroup for a consultation or ask your utility grid supplier.

STATE 105

AC frequency too high

Check connection to the grid.

 

If the problem persists, contact EnviroGroup for a consultation or ask your utility grid supplier.

STATE 106

AC frequency too low

Check connection to the grid.

 

If the problem persists, contact EnviroGroup for a consultation or ask your utility grid supplier.

STATE 107

AC grid outside the permissible limits

Check connection to the grid.

 

If the problem persists, contact EnviroGroup for a consultation or ask your utility grid supplier.

STATE 108

Stand alone operation detected

Check connection to the grid.

 

If the problem persists, contact EnviroGroup for a consultation or ask your utility grid supplier.

STATE 112

RCMU error

Check connection to the grid.

 

If the problem persists, contact EnviroGroup for a consultation or ask your utility grid supplier.

STATE 301

Short term interruption due to AC overcurrent.

The fault should automatically be remedied. If the error code persists contact EnviroGroup for service advice.

STATE 302

Short term interruption due to DC overcurrent.

The fault should automatically be remedied. If the error code persists contact EnviroGroup for service advice.

STATE 303

Short term interruption due to power stage set over temperature

Check openings for cooling air and heat sink if necessary; fault is rectified automatically; if this code keeps recurring contact your solar power system installer.

STATE 304

Internal temperature too high

Check vents and cooling system, if the problem persists contact a solar installer

STATE 306

Intermediate circuit voltage too low for feeding energy into the grid

If this code appears even with sufficient sunlight, consult EnviroGroup for a solution.

 

If the code appears early morning/late evening when sunlight is minimal, it is part of routine operations and NOT an indicator of a fault.

STATE 307

DC input voltage too low for feeding energy into the grid

If this code appears even with sufficient sunlight, consult EnviroGroup for a solution.

 

If the code appears early morning/late evening when sunlight is minimal, it is part of routine operations and NOT an indicator of a fault.

STATE 308

Intermediate circuit overvoltage

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 309

DC input voltage MPPT 1 too high

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 311

Polarity of DC strings reversed

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 313

DC input voltage MPPT 2 too high

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 314

Current sensor calibration timeout

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 315

AC current sensor error

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 316

Interrupt Check fail

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 325

Overtemperature in the connection area

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 326

Fan 1 error

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 327

Fan 2 error

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 401

No communication with power stage set possible

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 406

Power stage set temperature sensor faulty

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 407

Internal temperature sensor faulty

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 408

DC feeding into the grid detected

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 412

Fixed voltage mode has been selected instead of MPP voltage mode and the fixed voltage has been set to too low or too high a value

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 415

Safety cut out via option card or RECERBO has triggered. The inverter is not feeding any energy into the grid.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 416

No communication possible between power stage set and control system

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 417

Hardware ID problem

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 419

Unique ID conflict

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 420

No communication possible with the Hybrid manager

Update the inverter firmware.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 421

HID range error

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 425

No communication possible with the power stage set

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 426-428

Possible hardware fault

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 431

Software problem

Switch the AC circuit breaker off and on.

 

Update the inverter firmware.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 436

One or more PC boards in the inverter are not compatible with each other

The inverter will automatically attempt to correct this error.

 

Update the inverter firmware.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 437

Power stage set problem

The inverter will automatically attempt to correct this error.

 

Update the inverter firmware.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 438

One or more PC boards in the inverter are not compatible with each other

The inverter will automatically attempt to correct this error.

 

Update the inverter firmware.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 443

Intermediate circuit voltage too low or asymmetric

Update the inverter firmware.

 

If this code is consistently displayed after the update, contact EnviroGroup for a consultation.

STATE 445

Invalid limit value settings

Update the inverter firmware.

 

If this code is consistently displayed after the update, contact EnviroGroup for a consultation.

 

The inverter has disconnected from the grid as a safety measure.

STATE 447

Insulation fault

If this code is consistently displayed after the update, contact EnviroGroup for a consultation.

The inverter has disconnected from the grid as a safety measure.

STATE 448

Neutral conductor not connected

If this code is consistently displayed after the update, contact EnviroGroup for a consultation.

The inverter has disconnected from the grid as a safety measure.

STATE 450

Guard cannot be found

If this code is consistently displayed after the update, contact EnviroGroup for a consultation.

The inverter has disconnected from the grid as a safety measure.

STATE 451

Memory error detected

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 452

Memory error detected

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 452

Communication error between the processors

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 453

Short term grid voltage error

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 454

Short term grid frequency error

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 456

Anti-islanding function is no longer implemented correctly

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 457

Grid relay sticking

Contact EnviroGroup for a consultation.

STATE 458

Error when recording the measuring signal

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 459

Error when recording the measuring signal for the insulation test

Contact EnviroGroup for a consultation.

STATE 460

Reference voltage source for the digital signal processor (DSP) is working out of tolerance

Contact EnviroGroup for a consultation.

STATE 461

Fault in the DSP data memory

Contact EnviroGroup for a consultation.

STATE 462

Error with DC feed monitoring routine

Contact EnviroGroup for a consultation.

STATE 463

Reversed AC polarity, AC connector inserted incorrectly

Contact EnviroGroup for a consultation.

STATE 472

Fuse for solar panel ground is faulty

Replace fuse for solar panel ground;

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 474

RCMU sensor faulty

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 475

Solar panel ground fault, insulation fault (connection between solar panel and ground)

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 476

Driver supply voltage too low

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 480, 481

One or more PC boards in the inverter are not compatible with each other

The inverter will automatically attempt to correct this error.

 

Update the inverter firmware.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 482

Startup incomplete

Turn the AC circuit breaker off and on.

 

Complete start up.

STATE 483

Voltage UDC fixed on MPP2 string out of limits

Check the MPP settings.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 485

CAN transmit buffer is full

Turn the AC circuit breaker off and on.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 502

Insulation error on the solar panels

Push button on the inverter display.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 509

No energy fed into the grid in the past 24 hours

Push button on the inverter display.

 

Look for any grid feed-in issues.

 

Look out for further error messages.

STATE 515

No communication with filter possible

Push button on the inverter display.

 

Look for any grid feed-in issues.

 

Look out for further error messages.

STATE 516

No communication possible with the storage unit

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 517

Temperature highs cause power derating

Check vents, cooling, and heat sink.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 518

Internal DSP malfunction

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 519

No communication possible with the storage unit

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 520

No energy fed into the grid by MPPT1 in the past 24 hours

Push button on the inverter display.

 

Look for any grid feed-in issues.

 

Look out for further error messages.

STATE 522

DC1 Input Voltage too low

Check voltage & polarity on input 1 of the inverter.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 523

DC2 Input Voltage too low

Check voltage & polarity on input 2 of the inverter.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 551

Fuse for solar panel ground is faulty

Replace fuse for solar panel ground;

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 558, 559

One or more PC boards in the inverter are not compatible with each other

The inverter will automatically attempt to correct this error.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 560

High grid frequency has caused derating.

The inverter will automatically attempt to correct this error once the frequency is within a normal range.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 564

One or more PC boards in the inverter are not compatible with each other

Update the inverter firmware.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 566

Arc detector switched off (e.g. during external arc monitoring)

No error, Confirm status code by pressing ‘Enter’.

STATE 567

Grid Voltage Dependent Power Reduction is active (grid voltage has exceeded 250 Vac)

Acknowledge the error code.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 568

Incorrect input signal on the multifunction current interface

Acknowledge status code;

 

check the devices connected to the multi-function current interface; 

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 601

CAN bus is full

Update the inverter firmware.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 603

AC module temperature sensor faulty (L3)

The inverter will automatically attempt to correct this error once the frequency is within a normal range.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 604

DC module temperature sensor faulty

The inverter will automatically attempt to correct this error once the frequency is within a normal range.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 607

RCMU error

Reset status code by pressing ‘Enter’. 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 608

One or more PC boards in the inverter are not compatible with each other

Update the inverter firmware.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 668

Incorrect input signal on the multi-function current interface

check the devices connected to the multi-function current interface; 

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 701-716

Provides information about the internal processor status

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 705

Conflict when setting the inverter number (e.g. number already assigned)

Correct the inverter number via the setup menu

STATE 721

EEPROM has been reinitialised or EEPROM is faulty

Acknowledge the error code.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 722-730

Provides information about the internal processor status

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 731

Initialisation error – USB stick is not supported

Check or replace USB stick.

 

Check the file system on the USB stick.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 732

Over current on USB stick

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 733

No USB stick connected

Check the USB is connected.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 734

Update file not recognised or not present

Check update file (e.g. for correct file name).

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 735

Update file does not match the device, update file too old

Update the inverter firmware.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 736

Write or read error occurred

Check USB stick and the data contained on it or replace USB stick.
Never unplug a USB stick if the ‘Data Transmission’ LED is still flashing or lit.

If this code is consistently displayed, contact EnviroGroup for a consultation

STATE 737

File could not be opened

Remove and then reinsert USB flash drive; check or replace USB flash drive

STATE 738

USB stick is write protected or full

Create storage space, remove write protection, check or replace USB stick if necessary.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 740

Initialisation error on USB flash drive

Check USB flash drive; reformat on PC for FAT12, FAT16 or FAT32.

STATE 741

Error during recording of logging data

Remove and then reinsert USB flash drive; check or replace USB flash drive

STATE 743

Error occurred during update process

Repeat the update process, check USB stick.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 745

Update file corrupt

Download the latest firmware.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 746

Error occurred during update process

Wait for 2 minutes, then start the update again.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 751

Time lost

Reset the time and date on the inverter.

 

Check update file (e.g. for correct file name).

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 752

Real Time Clock module communication error

Reset the time and date on the inverter.

 

Check update file (e.g. for correct file name).

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 754-755

Provides information about the processor status

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 757

Hardware error in the Real Time Clock module

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 758

Internal error: Real Time Clock module is in emergency mode

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 760

Internal hardware error

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 761-765

Provides information about the internal processor status

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 766

Emergency power de-rating has been activated

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 768

Different power limitation in the hardware modules

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 772

Storage unit not available

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 773

Software update error - invalid country setup

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 775

PMC power stage set not available

Press ENTER key.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 776

Invalid device type

Press ENTER key.

If this code is consistently displayed, contact EnviroGroup for a consultation.

STATE 781-794

Provides information about the internal processor status

If this code is consistently displayed, contact EnviroGroup for a consultation.

 


 

Sungrow

 

Error Display

Meaning

Solution

0002

The grid voltage exceeds
inverter allowable
upper limit.

Check the grid voltage and connection on the inverter.

 

If the voltage is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the voltage is within the tolerance range and the error code remains, contact us for an inspection.

 

0003

Grid transient voltage
exceeds the allowabel
range

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

0004

The grid voltage is below
inverter’s allowable
lower limit.

Check the grid voltage and connection on the inverter.

 

If the voltage is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the voltage is within the tolerance range and the error code remains, contact us for an inspection.

 

0005

The grid voltage is too low.

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

0006

The AC output current
exceeds inverter
allowable upper limit.

Wait for the current to fall below the protection value.

 

If this code is consistently displayed, contact EnviroGroup for a consultation.

0007

Transient AC overcurrent

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

0008

The grid frequency exceeds inverter allowable upper limit.

Check the grid frequency and connection on the inverter.

 

If the frequency is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the frequency is within the tolerance range and the error code remains, contact us for an inspection.

0009

The grid frequency is below the inverter allowable lower limit.

Check the grid frequency and connection on the inverter.

 

If the frequency is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the frequency is within the tolerance range and the error code remains, contact us for an inspection.

0010

Islanding

Check whether AC circuit breaker is triggered.

Check whether AC cables are all firmly connected.

Check whether grid is not in service.

 

If all conditions are OK and this fault still occurs in the LCD screen, contact EnviroGroup for a consultation

0011

The DC component of AC current exceeds inverter limit.

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

0012

A failure current is detected.

Call EnviroGroup to check your system for ground faults

0015

The grid voltage exceeds the permissible range

The inverter will automatically attempt to correct this error.

Check the AC cable

 

Check the grid frequency and connection on the inverter.

 

If the voltage is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the voltage is within the tolerance range and the error code remains, contact us for an inspection.

 

0016

The bus voltage or power is high.

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

0020

The bus voltage is high.

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

0021

PV1 input overcurrent is detected

Contact EnviroGroup for a consultation.

0022

PV2 input overcurrent is detected

Contact EnviroGroup for a consultation.

0036

The temperature of radiator is too high.

Check whether the inverter operating ambient temperature is more than the range indicated in the specification.
Check whether the AC output power exceeds the nominal power.
If the fault still exists, please contact EnviroGroup.

0037

The internal temperature of inverter is too high

Check whether the inverter operating ambient temperature is more than the range indicated in the specification.

 

Check whether the AC output power exceeds the nominal power.

 

If the fault still exists, please contact EnviroGroup.

0038

Relay fault is detected

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

039

The insulation resistance is low. (ISO-flt)

Check whether the positive and negative of PV panels is short-circuited with ground lead.

Wait a moment for inverter recovery.
If the fault occurs repeatedly, contact EnviroGroup 

041

Leakage current self-test abnormality

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

047

The PV configuration mode set in the phone application interface is not in accordance with the configuration in the connection cabinet.

Disconnect the inverter.
Re-select PV configuration mode and re-connect PV strings.

If the error persists, contact EnviroGroup for a consultation

048

Sampling channel failure

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

053

Auxiliary DSP detects grid voltage exceeds set protection value

Check the grid voltage and connection on the inverter.

 

If the voltage is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the voltage is within the tolerance range and the error code remains, contact us for an inspection.

 

054

Auxiliary DSP detects grid frequency exceeds set protection value

Check the grid frequency and connection on the inverter.

 

If the frequency is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the frequency is within the tolerance range and the error code remains, contact us for an inspection.

056

Auxiliary DSP detects grid leakage current exceeds set protection range

Contact EnviroGroup to check for a ground fault.

057

Auxiliary DSP AC current sampling channel anomaly

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

058

Auxiliary DSP detects AC current DC injection exceeds inverter set protection range

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

059

Main and auxiliary DSP communication anomaly

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

060

Main and auxiliary DSP sampling difference

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation.

070

Fans are defective

Stop the inverter

Disconnect the AC and DC cables

Check the fan duct and fans

If this code is consistently displayed, contact EnviroGroup for a consultation.

087

Arc self-detection anomaly warn

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation

088

Arc anomaly fault

Stop the inverter

Disconnect the AC and DC cables

Check the cables

If this code is consistently displayed, contact EnviroGroup for a consultation

089

Arc detection OFF warn

Remove the warning by enabling arc detection function or keep the warning by closing arc detection function.

100

The AC output current
exceeds inverter
protection limit.

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation

101

The grid frequency exceeds inverter allowable upper limit.

Check the grid frequency and connection on the inverter.

 

If the frequency is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the frequency is within the tolerance range and the error code remains, contact us for an inspection.

102

The grid frequency is below the inverter allowable lower limit.

Check the grid frequency and connection on the inverter.

 

If the frequency is outside the tolerance range, ask your utility grid supplier for a solution.

 

If the frequency is within the tolerance range and the error code remains, contact us for an inspection.

106

The inverter is not grounded

Call EnviroGroup to check your system for ground faults

200

The bus voltage is high.

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation

201

The bus voltage is too low.

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation

202

PV current overcurrent

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation

205

AC output replay abnormal

The inverter will automatically attempt to correct this error.

If this code is consistently displayed, contact EnviroGroup for a consultation

307

DC power is too high

Contact EnviroGroup for a consultation