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400ml (14 oz) Ultrasonic Humidifier & Aroma Diffuser LKJ-161
Brand: Generic / OEM
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Audited BOM: 10 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 water level sensor (COMP-007) is prone to failure (ENG-002), leading to unintended shutdowns (RMA-002) and customer complaints (REV-002).
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