Sungrow
SG-044 · IDs 932,935,937–940,964,840

Battery Alarm – General

Battery warning-level alarm — battery may recover automatically. Covers minor cell imbalance, temperature warnings, and communication alerts. For codes 937, 941, 942: upgrade firmware. For code 935: switch off, wait 5 min, restart.

Transient temperature conditionMinor cell imbalanceFirmware-related condition (codes 937, 941, 942)
STEP 1
Check if battery recovers automatically — most alarms are transient. Switch off immediately if SOC drops below 3%.
STEP 2
For temperature-related codes: check ambient temperature and installation environment. For code 935: switch off, wait 5 min, restart.
Alarm persists after corrective actions — contact manufacturer
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More Sungrow fault codes

SG-001 · IDs 2,3,14,15
Grid Overvoltage
SG-002 · IDs 4,5
Grid Undervoltage
SG-003 · ID 8
Grid Overfrequency
SG-004 · ID 9
Grid Underfrequency
SG-005 · ID 10
Grid Power Outage