Solis
ARC- FAULT
DC Arc Detected (Alarm 1041)
AFCI has detected a DC arc. Treat as genuine until proven otherwise.
Common causes
Loose or broken MC4 connectorsLoose connection in terminal, fuse block or junction boxCracked or damaged panelsFirmware or sensitivity setting
What to check
STEP 1
Inspect MC4 connectors, inverter DC terminals, fuse blocks and junction boxes for loose or damaged connections.
STEP 2
Check panels for cracks or damage, then check firmware and AFCI sensitivity level.
Escalate if
Alarm recurs after checks, possible live arc, treat as urgent
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