While no serious injury resulted in this event, there has been a previous report received where this malfunction resulted in a serious injury.Therefore, it must be presumed that recurrence of this malfunction could possibly cause or contribute to a serious injury or require medical or surgical intervention to preclude such.As such, this event is reportable per 21 cfr part 803.Evaluation found no issues with unit heating inserts.Water pressure was at 22 psi with water flow over 100 cc/min at maximum setting.All electrical calibration points are within calibration.Operated unit for extended period with no heat development of insert.Cleaned up tubing, replaced water filter and depleted foot control batteries along with tuning/calibration of unit, all functions tested.The customer was advised to evaluate inserts for damage/wear and recommend denstply inserts only.
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