Stu_D Posted July 9 Share Posted July 9 Hi. I have a Deye 8Kw inverter with two mppt strings and two 5Kw batteries. Been working fine for 18 months. Suddenly I have a F26 fault which I managed to rest once and it came back again after a couple of hours. Does anyone have any suggestions to resolve this issue. The inverter works like a bypass for mains power when this fault is present with no loads shown. Quote Link to comment Share on other sites More sharing options...
Scorp007 Posted July 9 Share Posted July 9 2 hours ago, Stu_D said: Hi. I have a Deye 8Kw inverter with two mppt strings and two 5Kw batteries. Been working fine for 18 months. Suddenly I have a F26 fault which I managed to rest once and it came back again after a couple of hours. Does anyone have any suggestions to resolve this issue. The inverter works like a bypass for mains power when this fault is present with no loads shown. Error code is DC busbar unbalanced. Quote Link to comment Share on other sites More sharing options...
Stu_D Posted July 9 Author Share Posted July 9 I am told it may be due to an earth fault on one of the MPPT strings. Managed to reset the inverter with the DC turned off. I will keep you posted. Quote Link to comment Share on other sites More sharing options...
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