Investigation summary: the affected device was received for evaluation.Visual inspection confirmed that there was a crack in the drain part of the enclosure.Functional testing confirmed that water was leaking from the drain part of the tank, confirming the customer's indicated failure.The cause is a crack in the enclosure.Based on the cracks, it is assumed that the impact was applied to the drain section of the main unit.The most likely cause is that the unit has been subjected to shock.The enclosure, gasket, and ac power cord were replaced, and the device passed all functional and performance testing.A review of the device history record (dhr) shows there were no observations or nonconformities recorded during manufacture to suggest an issue of this nature would occur with this lot of products.
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