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ISO-FAIL
Anker
ISO-FAIL
Isolation Failure
Isolation test between DC and AC circuits failed.
Common causes
Moisture in PV system
Damaged PV cable or connector
Failed battery module
What to check
STEP 1
Power down
STEP 2
Check PV insulation resistance — must be >1 MΩ
Escalate if
Insulation resistance in spec but fault persists — contact Anker support
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More Anker fault codes
EE
Earth Fault
PV_OV
PV Overvoltage
GRID_FAULT
Grid Fault / Grid Abnormal
BAT_FAULT
Battery Module Fault
COMM_FAULT
Communication Fault