B3: date of event and d5: operator of device are unknown, no information has been provided to date.Device evaluation: one device was returned for investigation.Visual inspection found scuff marks on the top left corners of the enclosure.The air detector bracket was bent causing the air detector to not be seated fully against the tower.There are a couple dents on the back panel as well.Functional testing found the device does not go into "operations mode", the green light lit on the display.The bent air detector bracket caused the bottom 3/4 of the air detector to protrude from the device.This in turn caused the gas/vent filter to not engage the filter holder micro switch fully, resulting in an interlock (disposable) alarm.That is also why there is no water flow, all interlocks were not satisfied for the device to run as intended.The top socket assembly (#2) works as intended.The alarm complaint was confirmed.The connection complaint was not duplicated.Root cause was attributed to the bent air detector bracket.What caused the physical damage to the component was not established.The product's history records were reviewed and there were no non-conformances nor service related issues that would have resulted in the reported complaint.The air detector bracket was replaced.The o-rings and fan guard were replaced for preventative maintenance.Device passed functional testing after the completed repairs.
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