Error handling: Motor power OFF.
Error reset: Possible.
Description: The power supply unit control board detected overheating of the 3-phase rectifier module on the power supply unit power board, or a thermal switch signal.
Main causes:
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A problem with the power supply unit cooling fan.
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The power supply unit power board is faulty.
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An open circuit or poor connection in the harness inside the power supply unit.
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A problem with the power supply unit control board.
Countermeasures:
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Check that the fan operates normally.
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Replace the power supply unit.