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© 2018 KOSTAL Solar Electric GmbH
Technical data
Type of event General explanation and actions
System fault If this error is displayed, the inverter should generally be restarted. To do this, use the DC switch to
switch the inverter o. Only switch it on again after 5 minutes. If this does not help, please contact your
installer or call our hotline.
Overheating The device has got too hot. Switch the device o for approx. 20 min.
If the error occurs several times/permanently, please contact the support team.
External fault Please contact your installer
Battery errors Please contact your installer or our support team
Grid fault Please contact your installer
Fan fault Please contact your installer
Event
code
LED Type of event Description / possible cause Measure
5002
System fault Welded DC main relay detected Restart device
1
5003 System fault Welded DC main relay detected Restart device
1
5005 System fault Welded DC main relay detected Restart device
1
5006 System fault Relay or activation potentially
defective
Restart device
1
5008 Overheating Overheating, AC/DC power level Switch o device and allow to cool
o. Check installation conditions and
fan
1
5009 Overheating Overheating, processor Switch o device and allow to cool
o. Check installation conditions and
fan
1
5010 System fault Relay or activation potentially
defective
Restart device
1
5011 System fault Relay or activation potentially
defective
Restart device
1
5012 External generator fault Overvoltage on PV generator Check generator installation/layout
1
5013 Information Power curtailment through external
specifications (grid operator)
No action necessary
1
5014 Information Power curtailment due to a grid fault
(increased grid frequency)
No action necessary
1
5016 External generator fault Overvoltage on PV generator DC1 Check generator installation/layout
1
5018 External generator fault Overvoltage on PV generator DC2 Check generator installation/layout
1
5020 External generator fault Overvoltage on PV generator DC3 Check generator installation/layout
1