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  • They give the error 09 bus softstart failed. This could be low 48v bus supply 38v or below you then need to jump start the bank directly from a charger or disconnect and charge them up to 42v and try to restart. Mecer mustek do repairs and can supply a price for a new unit the new 5kva ax come in high 150vdc PV and mid 20-150vdc PV units the HV ones have 4.5kw solar PV ability too about 13kZAR
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