A biomedical technician (biomed) at a user facility reported that a fresenius 2008t hemodialysis (hd) machine was displaying an intermittent 24 volt low message in standby prior to treatment.
Upon troubleshooting the machine issue, biomed found that the ic23 on the actuator board was burned and there was a burning smell and smoke.
Biomed did not observe any spark, flame, arcing, or any other visible heat or electrical damage related to the burning found on the actuator board.
Biomed could not confirm the machine hours or if the actuator board was the original fresenius part on the machine.
The machine has not had any past problems with failing the electrical leakage test and is always plugged into a hospital grade ground-fault circuit interrupter (gfci) outlet.
Biomed stated that the actuator board and cable were replaced, which resolved the machine issue, and that the machine is back in service without any issues.
Additionally, biomed confirmed that there was damage observed on the actuator board cable associated with the burned ic 23 on the actuator board.
Biomed confirmed that a patient was not connected to the machine at the time of the incident and there was no harm to any patients or individuals because of this malfunction.
Biomed confirmed that the actuator board was discarded and that it is not available for return to the manufacturer for physical evaluation.
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