The device, intended for use in treatment, was not returned for evaluation.A relationship, if any, between the subject device and the reported event could not be determined since the product was not returned for evaluation.Visual inspection and functional testing could not be performed since the device was not returned for evaluation.Thus, the complaint could not be verified, nor could a root cause be determined with confidence.If the product associated with this event is returned at a future date, this evaluation will be reopened for investigation.Potential factors unrelated to the manufacture or design of the device that could have contributed to the reported event includes: a power surge to the subject controller, using an improper power cord or improper extension cord, or a loose power connection, failure of an electronic component inside the subject controller.There are no indications to suggest the device did not meet product specifications upon release into distribution.
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