During device evaluation performed at zoll, the returned autopulse platform (s/n (b)(4)) failed to power up.The root cause of the noted failure was the defective motor controller and processor boards, caused by blood/fluid ingress into the autopulse platform, probably attributed to user mishandling.Both the motor controller and processor boards were replaced to remedy the fault.During further inspection, it was noted that the lcd screen was unreadable due to the blood/fluid ingress.The defective lcd screen assembly was replaced to address the issue.Visual inspection was performed on the returned autopulse platform, and no apparent physical damage was observed.During open case inspection, the front and bottom enclosures were removed, and a massive amount of blood and fluid ingress was found inside the autopulse platform, consistent with the customer's statement that "the platform was contaminated with blood/body fluid." the contamination had formed corrosion on the top cover metalized inner surface.Replacement of the top cover and complete reassembly of the platform was needed to address the issue.Subsequently, the autopulse platform was bio-cleaned.Following service, the autopulse platform was subjected to a final run-in test using the 95% large resuscitation test fixture (lrtf) with known good test batteries until discharged without any fault or error.Historical complaints were reviewed for service information related to the reported complaint, and there was no similar complaint reported for autopulse with serial number (b)(4).
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