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Post by theironkid19 on Jul 22, 2024 13:04:48 GMT
I have fresenius t machine 24k hrs, it shut off while they had a patient on, and then it appear on the screen code “24v”, any sugestions from where should i start? One i plug it back at the biomed room it seems to be okay its not giving me any alarm, but i worried iit would happen again, im new here as a biomed and as a member of this website, i would really appreciate any help and i will definitely share my knowledge in a future thanks
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Post by dave74 on Jul 22, 2024 15:02:16 GMT
Something easy to check is the connector from the power supply to the card cage in the back of the machine. With the machine off, I disconnect it and then reseat it.
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Post by The Bluestar Whisperer on Jul 22, 2024 15:29:09 GMT
Definitely check all of your connections and reseat all of your boards, even in the modules. Look at the lengths of all cables, as pinches and excess heat cause more resistance, which in turn causes a drop in voltage. Keep your power logic cable as far away from the transformer as possible. The fact that it happened in dialysis could be a clue. Most of the time a 24v error will show up in heat disinfect or upon start up and will have a "high" or "low" associated with it. Try running the machine in the back all day while you are there to try and reproduce the issue, even 2 heat cycles can trigger it. Trying to troubleshoot a 24v issue without it being present is a fool's errand. You will end up changing part after part with no resolution.
Just to add, A faulty keypad overlay can often be the cause of a machine randomly turning itself off. My advice to a new BioMed with machines getting up in age, familiarize yourself with the debug screens at all times and in all modes. Know what readings should look like when the machine is running tip-top. Just keep taking in as much info as possible, when you go to training it will all come together.
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