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300ml (10 oz) Aroma Diffuser Humidifier LKJ-117
Brand: Generic / OEM
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Audited BOM: 11 Components
RMA Chain & Defect Intelligence
Root cause causal graph linking factory engineering flaws to verified consumer return reasons.
⚡ Causal Link: Defect to Consumer Return
The use of low-quality components (ultrasonic motor ceramic) and the lack of an adequate heat dissipation system (ENG-001) lead to premature motor failure (COMP-002), resulting in products that stop working quickly (RMA-001) and raise concerns about burning smells (REV-004).
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