Evaluation codes: updated.One device was received.Per visual inspection, cracks were observed in the water tank cover.Per functional testing, the alarm for no disposable tube activates even if the heating tube is attached.The complaint was confirmed.The root cause was a defective micro switch.It was unknown what caused it to become defective.The product's history records were reviewed and there were no non-conformance's nor service-related issues that would have resulted in the reported complaint.It was recommended that the micro switch be replaced, and at the customer's request, the product was returned without repair.
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