Belmont rapid infuser was intermittently being used and rates were alternating between 50 and 500ml.Approximately 1.5 hours later, the belmont shut off on its own accord several times.Each time the unit was rebooted and functioned correctly for a few minutes.The last time it powered off on its own, and was rebooted, the machine gave the error message "temperature overheat" in a large box in the upper right hand corner, followed by "change disposable" in smaller wording underneath., another belmont unit was obtained along with new disposables, disposables loaded and machine turned on.Immediately the 2nd machine gave the error code of "temperature overheat".When the cartridge door was opened to remove the disposable, a distinct burning smell could be detected and the heat exchanger ring was burnt at the "5-7 o'clock" position.A 3rd unit was obtained, new disposables were loaded and the same exact error message appeared (neither machine #2 nor #3 could complete their self tests).The 3rd machine was taken into a different operating room, and unit powered on without incident.The disposables were primed and machine operated appropriately.
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