March 9, 20233 yr Hello, I have a Sako sunon pro 5.5kw inverter connect to six solar panel with a 48v/200Ah lithium battery works fine on utility charging but when solar is involved is always giving me 03 fault error which is battery voltage is high, what is the problem, please help and advise…is there a special setting or maybe something wrong with the inverter… Regards Jamal
March 10, 20233 yr Welcome to the forum. On 2023/03/09 at 11:27 PM, Jamal Kurri said: I have a Sako sunon pro 5.5kw inverter connect to six solar panel with a 48v/200Ah lithium battery works fine on utility charging but when solar is involved is always giving me 03 fault error which is battery voltage is high, what is the problem, It seems to be a clone, so you never know what you get. Wild guess: clone of an Axpert VM II; there are a lot of thee around lately. As to your problem, my guess there is that you have not changed the settings at all, so it's using lead acid settings, which could over-charge the battery and cause it to disconnect. That will cause the battery terminal voltage to go too high. The default utility charge current setting is usually lower than the default Does the battery show any sort of fault code or error LED? If you tell us more about the battery, we can find the right settings for you. Not all batteries are the same.
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