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Troubleshooting AMX
Error Number
Error 0520
Error Code / System Message
Error Question
What does error 0520 mean on a GE Optima XR200amx or XR220amx?
Short Answer
Error 0520: Input stage: Software over input current detected [Iin > 140A].
Possible Causes
Subsystem/category: Input Stage / DC Bus. Manual recovery/error class: INHIBIT.
Troubleshooting Steps
Check Power Control Limits and generator input/DC-bus diagnostics. Evaluate system battery state, input cabling and generator input-stage hardware.
Parts Areas to Check
For Related Models
Optima XR200amx, Optima XR220amx
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