What is the primary function of a fault symptom in troubleshooting?

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Fault symptoms are the observable indications that something is wrong. They drive the troubleshooting flow by describing what is happening so you know where to start and what to test next. Capturing the symptom accurately helps you map possible failure areas and choose the appropriate diagnostic steps, guiding you toward the actual fault. It distinguishes the immediate observed problem from the underlying cause you’ll identify later, keeping the process focused and efficient. Administrative details like recording the technician’s name, post-diagnostic metrics like repair duration, or planning tasks like listing needed tools don’t guide the diagnostic path, so they aren’t the primary function of a fault symptom.