Qn#(b)(4).The sample was returned for evaluation.A visual exam was performed and it was observed that the internal parts contained corrosion and humidity.Functional testing was also performed and the unit passed the tests.A device history record review was performed and no relevant findings were identified.Based on the investigation performed, the reported complaint was confirmed.During the inspection performed it was found that the unit contained corrosion and humidity , indicating the unit was exposed to water.It was also found that the thermofuse was open.The root cause can be attributed to the user.When the unit is exposed to water, the components tends to generate corrosion that affects the electrical functions that is performed by the thermofuse.
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