Sol-Ark › inverter firmware (MCU / COMM) and remote updates

One paralleled inverter keeps shutting off, screens differ

reported in the field

Applies to: 5K-1P-N, 5K-2P-N, 8K-2P-N, 8K-2P-L, 12K (first generation, 2019 to 2021), 12K-2P-N, 12K-2P-LL Limitless, 15K-2P-N, 15K-2P-LV, 18K-2P-N, 18K-2P-LV

Symptoms

In a three-inverter 24 kW three-phase system one inverter (L2) repeatedly shut off and needed its DC breaker turned back on by hand
After the manufacturer pushed firmware the three screens differed (one showed a number in the corner the others did not)

The cause and the fix

Subscribers see the cause, the fixes that worked and who did them, part numbers and recent prices when a part is involved, and the field reports behind this entry.

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