SolaX
Arc Fault
PV Arc Detected (IE 17 X3 / IE 22 X1)
AFCI has detected a possible DC arc on the PV side. Treat as genuine until proven otherwise.
Common causes
Damaged or loose MC4 connectorDamaged PV cable insulationGenuine DC arc
What to check
STEP 1
Inspect PV string cabling and MC4 connectors for damage or loose mating.
STEP 2
Clear via Menu, ARC Clear, then monitor (5th alarm in a day must be cleared manually).
Escalate if
Fault recurs after clearing -- possible live arc, treat as urgent
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