Internal fault (e.g. temperature sensor)

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The Fronius Primo GEN24 208-240 inverter has detected an internal fault specifically concerning a temperature sensor. This can lead to inaccurate temperature monitoring, improper fan control, or a safety shutdown to prevent overheating or damage.

• Internal fault (e.g. temperature sensor).

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1. 1

   Perform a full power cycle of the Fronius Primo GEN24 208-240 inverter (AC and DC disconnects) to reset the internal systems and clear any transient sensor glitches.

2. 2

   Ensure the inverter's cooling vents and fan are clear of obstructions and functioning correctly, as a false temperature reading might be related to actual poor cooling.

3. 3

   Check the inverter's installation environment for excessively high ambient temperatures or direct sunlight exposure that could influence sensor readings.

4. 4

   Review the inverter's internal diagnostic data for any anomalous temperature readings that might indicate a specific sensor failure.

5. 5

   If the fault persists, this suggests a hardware issue with the temperature sensor or its circuitry; contact Fronius service for further diagnosis.