Investigation summary: the affected device was received for evaluation.The device had no physical damage.After visual inspection, the reservoir was filled with water, the temp check e5581 was attached, the line cord was plugged in, and the power turned on for functional testing.The customer's indicated failure could not be duplicated or confirmed, and the root cause could not be determined.As a result, no action was taken.The manufacturing dhr review found no indication that the manufacturing issue.The service history review identified there was no indication that the complaint was related to a service of the device within the review period.
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