Identify the product and current state
Capture model, variant, relevant revision and the exact displayed message where available. Distinguish first setup, normal use and a problem after maintenance or replacement. These starting conditions can require different documentation even when the user describes the same symptom.
Use observations as branch questions
Ask what the user can reliably see or report, rather than requiring a component diagnosis. Separate observation from action. Document what each answer establishes and which approved check follows. If the user cannot answer a question, include a useful uncertainty path.
Keep checks source-based and role-specific
Each check should identify its source, required role, expected result and permitted next action. Use a photo, diagram or interactive view to explain what to look at. Preserve the manufacturer’s access and isolation requirements; a customer flow must not silently become a technician repair procedure.