Check if AC voltage and grid frequency are within range.
Firmware Update.
Test the grid voltage.
102
Low Grid Frequency
SGxK-D
Troubleshooting – 102
Set grid connection minimum frequency to 47
106
Grounding or Earth Fault
All models
Troubleshooting – 106
TAKE A TEST PHOTO OF THE FOLLOWING: AC Active to Earth, Active to Neutral, Resistance between Earth and Neutral.
Check all the grounding points on the inverter, make sure the body of the inverter is grounded. For hybrid, do not connect ground wire on the backup terminal.
Make sure there's proper M-E-N link.
Please do a firmware update.
11
-
SGxK-D, SHxRS
Troubleshooting – 11
Please call Sungrow.
112
AC Voltage imbalance
-
Troubleshooting – 112
Please check the AC voltage of the inverter.
113
Backup Overload Fault
-
Troubleshooting – 113
Check all the loads, make sure there's no high starting current.
Factory reset.
12
-
-
Troubleshooting – 12
Please call Sungrow.
13 & 17
Grid Unbalance
SHxRS, SHxRT, SGxRT
Troubleshooting – 13 & 17
Check the voltages from iSolarcloud, if there's a voltage imbalance please check the installation for loose connection. Please take test photo of the AC/Grid Voltages.
Please do a Firmware Update.
16, 19, 20, 100, 200
BUS Overvoltage Fault
All Models
Troubleshooting – 16, 19, 20, 100, 200
Please check if the MPPT voltage are within the operating voltage range of the inverter.
If the voltage is within range, please update all the devices.
If the voltage is over that operating voltage, please remove some panels.
19, 24, 25, 40
PV to ground fault.
SGxRS
Troubleshooting – 19, 24, 25, 40
Please check the DC cable if there's burn or Damage.
Please check the DC Cable termination.
Please do an IR Test.
201
BUS Undervoltage
SHxRT
Troubleshooting – 201
Please Check the PV voltage.
202 (SHxRT)
PV Overcurrent
SHxRT-V112
Troubleshooting – 202 (SHxRT)
Check if the DC Voltage or Current are within range of the inverter specifications.
203
Permanent Fault
SGxK-D
Troubleshooting – 203
Please call Sungrow.
204, 205
-
SHxT
Troubleshooting – 204, 205
Please test the following and take photos: AC & DC voltage test, IR test.
Check the PV and Grounding.
Firmware Update all the devices.
208
PV reverse polarity fault
-
Troubleshooting – 208
Please check the PV Polarity. (make sure to take photo of the polarity tests)
24, 25
-
SG7.0RT up to SG10RT only
Troubleshooting – 24, 25
Check if you have paralleled PV on MPPT 2. Cannot Parallel on MPPT 2.
Please check the DC cable if damaged.
Check the DC cable termination.
Please do an IR Test.
303
Bypass Relay Issue
SHxRS
Troubleshooting – 303
TAKE A TEST PHOTO OF THE FOLLOWING: Resistance between backup Neutral to AC Earth, backup Neutral to AC Neutral. AC, DC voltage test, IR test.
Completely Shutdown the inverter for 30 minutes.
Call Sungrow.
303 - SHxRT
-
SHxRT
Troubleshooting – 303 - SHxRT
No troubleshooting steps available.
303, 515
-
SHxRS/RT, SHxT
Troubleshooting – 303, 515
Firmware Update.
Completely Shutdown the inverter for 30 minutes.
If on Whole Home Backup, please check the changeover switch installation. Make sure that the AC of the inverter is on backup or installed after the changeover switch.
304
Grounding or Earth Fault
SHxRS
Troubleshooting – 304
If full off-grid it's a grounding issue, please check all the grounding points.
304 (SHxT)
Firmware Issue
SHxT
Troubleshooting – 304 (SHxT)
Firmware Update all the devices.
306
Firmware Issue
SGxK-D
Troubleshooting – 306
Firmware update all the devices.
315, 316, 48, 49, 50
Firmware Issue
All Models
Troubleshooting – 315, 316, 48, 49, 50
Firmware Update all devices.
Call Sungrow if the issue persist.
320 (SGxK-D)
IR Issue
SGxK-D
Troubleshooting – 320 (SGxK-D)
Please get the test photo of the following: AC & DC Voltage test, IR test.
320 (SHxRT)
Firmware Issue
SHxRT
Troubleshooting – 320 (SHxRT)
Please do a firmware update on all of the devices.
322
-
-
Troubleshooting – 322
Please call Sungrow.
329
Installation Issue
SHxT
Troubleshooting – 329
Check if the backup and AC terminal are swapped.
Check the changeover switch installation, make sure the AC of the inverter is installed before the changeover switch.
Please do phase testing to check if there's redundant or missing AC supply.
329 (SGxRT)
-
SGxRT
Troubleshooting – 329 (SGxRT)
Please do phase testing to check if there's redundant or missing AC supply.
36, 70
Temperature Issue
All Models
Troubleshooting – 36, 70
Please call Sungrow.
38 (SGxK-D, SGxRS, SGxCX)
Peramanent Fault
SGxK-D, SGxRS, SGxCX
Troubleshooting – 38 (SGxK-D, SGxRS, SGxCX)
For warranty, please call Sungrow.
If the inverter is not online, please take a photo or short video of the fault showing on the screen and the inverter name plate.
38 (SHxRS)
-
SH8.0RS, SH10RS
Troubleshooting – 38 (SHxRS)
Check the changeover switch installation. Make sure that the inverter AC breaker is installed before the changeover switch and it's directly connected to grid.
Please refer to the link for wiring diagrams: https://drive.google.com/drive/folders/1PLm4SP4JC60BdoXU_7F9eY7QRNQ1oIBS?usp=sharing
39
Low PV Insulation Resistance
All Models
Troubleshooting – 39
Do an Insulation Resistance test on the PV strings
Check the PV and DC cable for any damage
40 (SGxCX)
-
SGxCX
Troubleshooting – 40 (SGxCX)
Firmware Update.
41 to 45
Peramanent Fault
SGxK-D
Troubleshooting – 41 to 45
Replace the inverter.
44
-
SHxRS
Troubleshooting – 44
Replace the inverter if the issue keeps happening.
44, 60
PV to Ground Fault
SGxRS
Troubleshooting – 44, 60
Please check the DC cable if there's burn or Damage.
Please check the DC Cable termination.
Please do an IR Test.
47
PV Installation
-
Troubleshooting – 47
Please check the panel installation.
500
Permanent Error
SH5.0RS, SH6.0RS, SH5.0RT, SH10RT
Troubleshooting – 500
Please call Sungrow.
502
-
-
Troubleshooting – 502
Restart the inverter.
Please do a firmware update on all of the devices.
505
-
SHxRS
Troubleshooting – 505
Firmware update the whole system.
507
-
-
Troubleshooting – 507
Please do a firmware update on all of the devices.
Please note that the error code doesn't affect the inverter production.
51
Backup Overload Fault
Hybrid Models
Troubleshooting – 51
Remove some loads on the backup.
510
Capacitor Fault
SH5K-30
Troubleshooting – 510
Please call Sungrow.
513
-
-
Troubleshooting – 513
Firmware Update, if the issue persist after the update, call Sungrow.
Please note that this error doesn't affect production.
514
Meter Communications Fault
All Models
Troubleshooting – 514
Please check the meter comms, refer to the quick installation guide. Make sure the smart meter is connected to A2, B2 of the inverter.
Please refer to this link for the proper cable: https://service.sungrowpower.com.au/DD_202210_RS485_Clarification%20on%20cable%20requiremets_V1.4%20Final.pdf
516
Backup Overload Fault
SHxRT
Troubleshooting – 516
Please remove some loads on the backup circuit.
518
-
SH5.0RS, SH6.0RS, SH5.0RT, SH10RT
Troubleshooting – 518
Check the Backup and AC port if it's swapped.
Firmware update the whole system.
533
PV Reverse
-
Troubleshooting – 533
Check the polarity of PV.
548 to 563, 580 to 595
PV Abnormal Alarm
SGxCX
Troubleshooting – 548 to 563, 580 to 595
Check DC cable if loose or damaged
Check polarity
The code 548 to code 563 are corresponding
to string 1 to string 16 respectively
The code 580 to code 595 are corresponding
to string 17 to string 32 respectively.
549
PV Abnormal Alarm
SGxKTL
Troubleshooting – 549
Please refer to this link: https://drive.google.com/file/d/1_0uowInRjbsI5rvV5VFLJ-O_IC65OHzA/view
Call Sungrow if the issue persist.
59
Firmware Issue
SGxK-D
Troubleshooting – 59
Turn off the inverter for at least 30 minutes. (1hr is preferred)
Firmware update.
601, 616
-
SHxT
Troubleshooting – 601, 616
Please turn off Smooth Output on advance settings.
605
Permanent Error
SH5.0RS, SH6.0RS, SH5.0RT, SH10RT
Troubleshooting – 605
Please call Sungrow.
616
-
-
Troubleshooting – 616
Firmware Update
Factory Reset
If the issue persist, please call Sungrow.
62
EPS Communication Fault
SH5K to SH5K-20
Troubleshooting – 62
Please refer to this link: https://service.sungrowpower.com.au/files/Web_Files/FAQ/Hybrid/TD_201812_SH5K%20Series_Error%20062%20EPS%20Communication%20Issue_V1.0.pdf
64
-
SHxRT
Troubleshooting – 64
Check if backup have unbalanced loads.
Check if there's a changeover switch and if installed properly.
67
-
-
Troubleshooting – 67
Please do a firmware update on all of the devices.
703 (Multiple)
Low Battery Voltage Fault
SH5.0RT, SH10RT
Troubleshooting – 703 (Multiple)
Please call Sungrow.
703, 711
Battery Fault
Battery Fault
Troubleshooting – 703, 711
703 is battery low voltage fault, please check battery voltage.
703 is battery over voltage fault, please check battery voltage.
Please note that this errors can happen during the firmware update as the battery restarts.
716
Battery Fault
Battery
Troubleshooting – 716
Check the battery DC cable polarity and connected to the correct port at the inverter.
732
Battery Overvoltage Fault
Battery Fault
Troubleshooting – 732
Update the firmware for all devices and monitor the plant.
If the issue persist, please call Sungrow.
739
Low Battery Voltage Fault
Battery Fault
Troubleshooting – 739
There's voltage difference for each module min/max cell module. Please call sungrow.
74
-
SHxT
Troubleshooting – 74
Please do a firmware update on all devices.
741
-
Battery Fault
Troubleshooting – 741
Restart the battery without the DC cable connected, see if there's still a red light on the battery.
Check the battery DC cable.
Check the voltage from the battery breaker.
Check the voltage from the battery base without the battery breaker.
742
Battery DC Cable Fault
Battery DC Cable
Troubleshooting – 742
Poor contact from Battery DC cable, Please create a new DC cable for the battery.
744, 745 , 746
-
Battery Fault
Troubleshooting – 744, 745 , 746
Need to Shuffle the battery module (Issue is pins or contact terminals of the battery might be damaged or poor contact).
Please take photo of the pins and contact terminals, contact Sungrow if the issue persist after shuffling the modules.
747
Battery Fault
Battery
Troubleshooting – 747
Shutdown the battery for 15 minutes.
Firmware Update
800
Peramanent Fault
SH5K
Troubleshooting – 800
Please replace the inverter.
833
Battery Hardware Fault
Battery Fault
Troubleshooting – 833
Firmware update all devices.
Check the voltage from battery MC4 connected to the inverter.
Check the voltage from the battery breaker without the DC cable.
Check the voltage from battery base without the battery breaker.
Call Sungrow and send the test photos.
84
CT Reverse fault
-
Troubleshooting – 84
Check the CT orientation. CT should be installed before the main breaker and arrow is pointing towards the loads. You can check if the CT is pointing the correct way if you turn off the inverter DC isolator and the house loads is pulling power from grid.
If there's 2x Sungrow inverters onsite, Inverter with smart meter set the existing system and the other inverter existing system setting to off.
If there's no other inverter onsite, turn off the existing system settings.
Restart the inverter.
85
Firmware Issue
SHxT
Troubleshooting – 85
Firmware Update
900
Peramanent Fault
-
Troubleshooting – 900
Please call Sungrow.
937
Voltage Difference Alarm
Battery Fault
Troubleshooting – 937
the error can be fixed by a firmware update.
964
Battery Hardware Alarm
Battery Fault
Troubleshooting – 964
Mostly this error occurs with error code 833. Firmware update the whole system (inverter, battery, wifi dongle)
Shuffle and restack the battery modules.
Check for any damaged terminal or pins on the battery modules.
967
-
Battery Fault
Troubleshooting – 967
This is just settings issue with the device, please call Sungrow to fix.
996
Generator Startup Alarm
-
Troubleshooting – 996
This error shows up for full off-grid system, the inverter will recover by itself.