During rewarming, unit was functioning properly.When patient reached 37 degrees, the unit stopped circulating water and the patient cooled down to 36 degrees.The second unit was retasked to warm the patient to 37 degrees.This required a total of 25 minutes of additional bypass time.Manufacturer response for heater cooler, cincinnati sub zero heater cooler (per site reporter): cincinnati sub zero representative consulted re: the equipment.Speaking with tech support, he determined that the power board was the issue.The pump fuse had blown.We received the new board, installed it, and ran it for several hours in the biomed shop.Our employee then completed the preventative maintenance on it before returning it to service.No further issues.
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