D9: date returned to mfg.: 1/10/2024.D10.Device available for evaluation, h3.Device evaluated by manufacturer and h6.Evaluation codes: updated.One device was received.Per visual inspection, the enclosure has some tape and other adhesive residue on portions of it.The top socket was leaking fluid.There is evidence of fluid ingression on the printed circuit board (pcb).The air detector failed the pin gauge test, the plunger does not descend fully allowing the pin gauge to pass freely underneath (the pin gauge should go no further than halfway under the plunger).A portion of the membrane switch ribbon shows signs of corrosion on the traces, an old-style clear float switch is cracked.The right door mount is damaged.Mount block assembly is worn.Per functional testing, the device ran for about two and a half minutes before the over temperature alarm activated.The complaint was confirmed.The root cause was fluid ingression on the pcb due to a leak from the o-ring.It was unknown what caused the condition.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.Replaced/tightened the screws and replaced the spring.Replaced the mount block assembly and both door mounts on the air detector.Replaced the membrane switch, pcb, o-rings, float switch and fan guard for preventative maintenance.The device passed all functional and delivery tests.
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