Internal Communication

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This status code indicates an internal communication error within the Fronius Primo GEN24 208-240 inverter. This typically points to a problem with internal data exchange between components, potentially caused by loose internal connections or a hardware defect.

• A loose internal connection between circuit boards or components within the inverter.
• An internal hardware defect affecting the communication pathways.

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1. 1

   De-energize the inverter (switch off AC and DC disconnects), wait for 5 minutes, then re-energize to reset the internal communication. If the message persists, the inverter may require service.