This companion 2 driver was not supporting a patient.The customer reported that the companion 2 driver made strange noise while it was pumping.The companion 2 driver was returned to syncardia for evaluation.Visual inspection of the driver's external and internal components revealed no anomalies.During investigation testing, a loud high-pitched noise was heard, which confirmed the reported issue.The noise was isolated to the left vacuum blower.The left vacuum blower was replaced, and the noise was no longer heard.The companion 2 driver then passed all performance testing.This failure mode posed a low risk to a patient because the issue was observed when the companion 2 driver was not supporting a patient.In addition, it would not prevent the companion 2 driver from performing its life-sustaining functions.This issue will continue to be monitored and trended as part of the customer experience process.Syncardia has completed its evaluation of this complaint and is closing this file.
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