Event codes

Event code	Red LED	Type of event	Description/possible cause	Action
5002	Flashing	System fault	Fused DC main relay detected	Restart the device ²
5003	Flashing	System fault	Fused DC main relay detected	Restart the device ²
5005	Flashing	System fault	Fused DC main relay detected	Restart the device ²
5006	Flashing	System fault	Relay or activation potentially defective	Restart the device ²
5008	Flashing	Excess temperature	Excess temperature, AC/DC power level	Switch off device and allow to cool off. Check installation conditions and fan ²
5009	Flashing	Excess temperature	Excess temperature, processor	Switch off device and allow to cool off. Check installation conditions and fan ²
5010	Flashing	System fault	Relay or activation potentially defective	Restart the device ²
5011	Flashing	System fault	Relay or activation potentially defective	Restart the device ²
5012	Lit up	External generator fault	Overvoltage on PV generator	Check generator installation/layout ²
5013	Off	Information	Power curtailment due to external specifications (grid operator)	No action necessary ²
5014	Off	Information	Power curtailment due to a grid fault (increased grid frequency)	No action necessary(1)
5016	Lit up	External generator fault	Overvoltage at PV generator DC(1)	Check generator installation/layout ²
5018	Lit up	External generator fault	Overvoltage on PV generator DC2	Check generator installation/layout ²
5020	Lit up	External generator fault	Overvoltage on PV generator DC3	Check generator installation/layout ²
5022	Flashing	Excess temperature	Excess temperature, AC/DC power level	Switch off device and allow to cool off. Check installation conditions and fan ²
5023	Lit up	Battery malfunction	Incorrect battery type selected	Set the right battery type in the inverter.
5024	Flashing	System fault	Hardware error	Restart the device ²
5025	Flashing	System fault	Hardware error	Restart the device ²
5026	Flashing	System fault	Hardware error	Restart the device ²
5035	Lit up	System fault	Internal system fault	Check generator installation/layout ²
5040	Flashing	External generator fault	Overcurrent event on DC string (1)	Check generator installation/layout ²
5041	Flashing	External generator fault	Overcurrent event on DC string 2	Check generator installation/layout((1))
5042	Flashing	External generator fault	Overcurrent event on DC string 3	Check generator installation/layout ²
5043	Lit up	External generator fault	Overcurrent event on generator	Check generator installation/layout ²
5046	Lit up	Battery communication fault	Internal communication error	Restart the device ²
5049	Lit up	Excess temperature	Excess temperature, processor	Switch off device and allow to cool off. Check installation conditions and fan ²
5050	Off	External grid fault	Power limitation due to a grid fault	No action necessary. ²
5052	Off	Information	Overcurrent on the PV generator	Check generator installation/layout ²
5055	Lit up	External grid fault	Residual current too high	There may be a weather-related problem. Check inverter/generator installation² Check generator insulation resistance. Potential PV generator error (too many PV modules).
5057	Lit up	External grid fault	Insulation resistance too low	There may be a weather-related problem. Check inverter/generator installation ²
5059	Off	External grid fault	Grid conditions are not within the valid range	No action necessary. If the error occurs frequently, check installation and associated grid values.
5061	Off	External grid fault	Grid conditions are not within the valid range	No action necessary. If the error occurs frequently, check installation and associated grid values.
5062	Off	External grid fault	Grid conditions are not within the valid range	No action necessary. If the error occurs frequently, check installation and associated grid values.
5063	Off	External grid fault	Grid conditions are not within the valid range	No action necessary. If the error occurs frequently, check installation and associated grid values.
5064	Off	External grid fault	Grid conditions are not within the valid range	No action necessary. If the error occurs frequently, check installation and associated grid values.
5065	Off	External grid fault	Grid conditions are not within the valid range	No action necessary. If the error occurs frequently, check installation and associated grid values.
5066	Off	External grid fault	Grid conditions are not within the valid range	No action necessary. If the error occurs frequently, check installation and associated grid values.
5067	Lit up	External grid fault	Device error	No action necessary(1)
5069	Lit up	System fault	Device error	No action necessary. ²
5070	Lit up	System fault	Hardware error	Contact support
5071	Lit up	System fault	Hardware error	There may be a weather-related problem. Check inverter/generator installation ²
5072	Lit up	System fault	Hardware error	Contact support
5073	Lit up	System fault	Hardware error	Contact support
5074	Lit up	Excess temperature	Temperature of inverter is too high	Restart the device ²
5075	Lit up	External grid fault	Overcurrent, AC grid	Restart the device ²
5077	Off	Off	Information	Power curtailment due to external specifications (grid operator) ²
5078	Off	Information	Power curtailment due to external specifications (grid operator)	No action necessary ²
5084	Lit up	System fault	Sensor information cannot be retrieved	Restart the device ²
5085	Lit up	System fault	Internal system error	Restart the device ²
5086	Lit up	System fault	Internal system error	Restart the device ²
5087	Flashing	Battery communication fault	Communication cable to battery faulty	Restart the device ²
5088	Flashing	Battery malfunction	Battery faulty	Restart the device ²
5089	Flashing	Battery malfunction	Battery faulty	Restart the device ²
5090	Flashing	Energy meter fault	Energy meter faulty	Restart the device ²
5091	Lit up	External generator fault	Negative voltage on PV generator 0	Check generator installation/layout ²
5092	Lit up	External generator fault	Negative voltage on PV generator 1	Check generator installation/layout ²
5093	Lit up	External generator fault	Negative voltage on PV generator 2	Check generator installation/layout ²
5094	Lit up	External generator fault	Negative voltage on PV generator 3	Check generator installation/layout ²
5095	Flashing	Battery malfunction	Problem with battery connection	Check battery connection. Restart the device ²
5096	Lit up	External grid fault	External grid fault	Restart the device ²
5097	Lit up	Battery communication fault	Communication cable to battery faulty	Check MODBUS communication cable between inverter and battery ²
5098	Lit up	System fault	Internal system error	Check generator installation/layout ²
6004	Flashing	Fan fault	Fan unit dirty	Check/clean fan ²
6005	Flashing	Fan fault	Fan unit dirty	Check/clean fan ²
6006	Lit up	System fault	Sensor information cannot be retrieved	Check connection to energy meter ²
6007	Lit up	System fault	Internal system fault	Contact support
6009	Lit up	Battery communication fault	Communication cable to battery faulty	Check communication cable to the battery ²
6010	Lit up	Fan fault	Fan unit defective	Check fan ²
6011	Lit up	Fan fault	Fan unit dirty or defective	Check/clean fan ²
6012	Lit up	Fan fault	Fan unit dirty or defective	Check/clean fan ²
6013	Lit up	Fan fault	Fan unit dirty or defective	Check/clean fan ²
6014	Lit up	Energy meter fault	Parameter fault	The KOSTAL Smart Meter's firmware is not up to date. Update firmware. Contact the Support team
6015	Lit up	Battery communication fault	Communication cable to battery faulty	Check communication cable to the battery.
6017	Lit up	Fan fault	Fan unit dirty or defective.	Check/clean fan.
6018	Lit up	Battery malfunction	The battery system is sending an unknown error.	Contact the Support team.
6202	Lit up	Internal parameterisation fault	Hardware error	Contact support
6203	Lit up	Battery malfunction	Hardware error	Contact support
6204	Lit up	Battery malfunction	Hardware error	Contact support
6205	Lit up	Battery malfunction	Communication cable to battery faulty	Check communication cable to the battery ²
6206	Lit up	Battery malfunction	Communication cable to battery faulty	Check communication cable to the battery ²
6207	Lit up	Battery malfunction	Hardware error	Contact support
6208	Lit up	Battery malfunction	Hardware error	Contact support
6209	Lit up	Battery malfunction	Ambient temperature too high	Switch off device and allow to cool off. Check installation conditions ²
6210	Lit up	Battery malfunction	Communication cable to battery faulty	Check communication cable to the battery ²
6211	Lit up	Battery malfunction	Communication cable to battery faulty	Check communication cable to the battery ²
6212	Lit up	Battery malfunction	Hardware error	Contact support
6213	Lit up	Battery malfunction	Fuses defective or wiring error	Check/replace fuses. Check wiring ²
6214	Lit up	Battery malfunction	Fuses defective or wiring error	Check/replace fuses. Check wiring ²
6215	Lit up	Battery malfunction	Internal system error	Check device installation on AC side
6250	Lit up	Battery malfunction	Internal system error	No action necessary ²
6251	Lit up	Battery malfunction	Internal system error	No action necessary ²
6252	Lit up	Battery malfunction	Internal system error	Battery needs to be charged via generators
6253	Lit up	Battery malfunction	Internal system error	Contact support
6254	Lit up	Battery malfunction	Ambient temperature too high	Reduce ambient temperature. Check installation conditions
6255	Lit up	Battery malfunction	Ambient temperature too high or problem with temperature measurement	Contact support
6256	Lit up	Battery malfunction	Ambient temperature too high	Reduce ambient temperature. Check installation conditions
6257	Lit up	Battery malfunction	Ambient temperature too low or problem with temperature measurement	Contact support
6258	Lit up	Battery malfunction	Internal system error	No action necessary ²
6259	Lit up	Battery malfunction	Hardware error	Contact support
6260	Lit up	Battery malfunction	Internal system error	No action necessary ²
6261	Lit up	Battery malfunction	Hardware error	Contact support
6262	Lit up	Battery malfunction	Incorrect number of modules set	Correct the number of modules
6263	Lit up	Battery malfunction	Hardware error	Contact support
6264	Lit up	Battery malfunction	Hardware error	Contact support
6265	Lit up	Battery malfunction	Interruption on communication cables or incorrect number of modules set	Check communication cables, correct the number of modules ²
6266	Off	Information	Internal system error	No action necessary ²
6267	Off	Information	Internal system error	No action necessary ²
6268	Lit up	Battery malfunction	Hardware error	Contact support
6300	Lit up	Battery malfunction	Charging was prevented too late.	Wait for discharging, increase home consumption.
6301	Lit up	Battery malfunction	Charging was prevented too late.	Wait for discharging, increase home consumption.
6302	Lit up	Battery malfunction	Discharging was prevented too late or the system went into deep discharge via self-consumption.	Battery needs to be charged via generators.
6303	Lit up	Battery malfunction	Discharging was prevented too late or the system went into deep discharge via self-consumption.	Contact the Support team
6304	Lit up	Battery malfunction	Ambient temperature too high or problem with temperature measurement.	Reduce ambient temperature. Check installation conditions.
6305	Lit up	Battery malfunction	Ambient temperature too high or problem with temperature measurement.	Contact the Support team.
6306	Lit up	Battery malfunction	Ambient temperature too high or problem with temperature measurement.	Check ambient temperature.
6307	Lit up	Battery malfunction	Ambient temperature too high or problem with temperature measurement.	Contact the Support team.
6308	Lit up	Battery malfunction	Incorrect current measurement.	No action necessary.
6309	Lit up	Battery malfunction	Inverter defective or BMU current measurement defective.	Contact the Support team.
6310	Lit up	Battery malfunction	Incorrect current measurement.	No action necessary.
6311	Lit up	Battery malfunction	Inverter defective or BMU current measurement defective.	Contact the Support team.
6312	Lit up	Battery malfunction	Incorrect number of modules set.	Correct the number of modules. Completely disconnect system (AC/DC) and restart.
6313	Lit up	Battery malfunction	Short circuit on DC cables or relay error in the BMU.	Completely disconnect system (AC/DC) and restart.
6314	Lit up	Battery malfunction	Old and new battery modules have been used together or cell defect.	Contact the Support team.
6315	Lit up	Battery malfunction	Interruption on communication cables or incorrect number of modules set.	No action necessary.
6316	Off	Battery malfunction	Software renewed.	No action necessary.
6317	Off	Battery malfunction	Restart launched.	No action necessary.
6318	Lit up	Battery malfunction	Charging relay defective or communication error or very low or very high cell voltage.	Contact the Support team.
6319	Lit up	Battery malfunction	Fused relay contacts.	Contact the Support team.
6320	Lit up	Battery malfunction	Defective cabling or hardware defect	Contact the Support team.

1) If the error occurs several times/persistently, please contact the Support team.