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Solis
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UN-Vbatt
Solis
UN-Vbatt
Battery Undervoltage (Alarm 1054)
Battery voltage below limit.
Common causes
Deep discharge
Battery or BMS fault
What to check
STEP 1
Check battery SOC and voltage. Force-charge from grid if deeply discharged.
STEP 2
Restart the inverter.
Escalate if
Battery will not recover charge
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More Solis fault codes
E001
Grid Over-Voltage
E002
Grid Under-Voltage
E003
Grid Over-Frequency
E004
Grid Under-Frequency
E005
Grid Impedance High