Fronius · Primo GEN24 Operating Instructions
This code indicates a timeout occurred during the current sensor calibration routine. This suggests an issue with the inverter's internal current measurement circuitry or its calibration process, leading to a short-term interruption.
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If the status code is displayed continuously, notify a Fronius-trained service engineer for further diagnosis.
Perform an AC reset by cycling the automatic circuit breaker to restart the calibration sequence.
Check for strong electromagnetic interference in the vicinity of the inverter.