Internal fault (e.g. hardware protection)

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The Fronius Primo GEN24 208-240 inverter has detected an internal fault related to its hardware protection circuits. This is a critical error, indicating that a safety mechanism has been triggered due to a potentially dangerous condition within the inverter, preventing further operation.

• Internal fault (e.g. hardware protection).

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1. 1

   Perform a controlled shutdown and restart of the Fronius Primo GEN24 208-240 inverter by cycling both AC and DC power disconnects, waiting sufficiently for components to de-energize.

2. 2

   Visually inspect the inverter for any signs of physical damage, such as charring, bulging components, or unusual smells (only by qualified personnel).

3. 3

   Check the inverter's environment for extreme conditions (e.g., severe heat, moisture, or electrical surges) that might have triggered the protection.

4. 4

   Review the event log for any other preceding faults that might have led to the activation of the hardware protection.

5. 5

   This fault suggests a serious internal component failure; contact Fronius service immediately, providing all available diagnostic information.