Siemens has completed the investigation: upon receiving the power supply, corrosion was observed externally on both prongs of the adapter connector plug.When the ac power adapter was opened, offensive odors (i.E.: burning smell) were verified.The cause for the smoke and odors from the power supply were from multiple burnt components of the ac power adapter circuit.The root cause is a "shorted" power supply circuit of the ac power adapter.The cause of the shorted power supply circuit is unknown, though getting the prongs or internal components of the power supply wet may cause this issue.
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