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30W E26/E27 Base Ceiling Fan Light Bulb MM-30W
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 brushless DC motor (COMP-002) overheats due to inadequate heat dissipation (ENG-001), leading to premature fan failure (RMA-001) and customer complaints about the product stopping (REV-002).
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