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Post by Wes on Feb 20, 2024 11:13:31 GMT
I have a reoccurring A.11 on several machines. I have one that I replaced Blood pump motor, Rotor, Hall Sensor, LP955, and LP956. I also have calibrated the Blood pump after the motor and boards were replaced. I am open to ideas on possible solutions without replacing the entire blood pump module.
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Icebonez
Junior Member
What is better - to be born good, or to overcome your evil nature through great effort?
Posts: 55 
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Post by Icebonez on Feb 20, 2024 13:13:39 GMT
Usually rebuilding the pump with new brushes is what fixes this for me. However, I did have a blood pump where the gear box seized up. This made is extremely difficult to turn the rotor, which meant the machine was throwing A.11 every 10 seconds or so.
@wes If you've already replaced all the parts listed, are you sure the cable connecting the blood pump module is good? It's possible you could have a broken trace.
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Post by gnurk on Feb 20, 2024 13:45:50 GMT
also dont forget to take off the plastic screw inserts that isolate the screws from the old motor assembly they dont sell these either
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Post by dave74 on Feb 20, 2024 14:11:00 GMT
I created a new thread for this because the other thread is over a year old, and the title of the other thread says the problem was solved.
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Post by dave74 on Feb 20, 2024 14:50:34 GMT
Usually rebuilding the pump with new brushes is what fixes this for me. However, I did have a blood pump where the gear box seized up. This made is extremely difficult to turn the rotor, which meant the machine was throwing A.11 every 10 seconds or so. @wes If you've already replaced all the parts listed, are you sure the cable connecting the blood pump module is good? It's possible you could have a broken trace. You could just swap the module out with a known good module to see if the problem is the machine and not the blood pump module. |
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Post by sheepdog1 on Feb 21, 2024 17:38:40 GMT
maybe you got a defective part out of box ! it happens
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Post by ryanp930 on Feb 23, 2024 18:45:31 GMT
I'm curious. besides the A.11 error code, does rebuilding the brushes fix other codes like A.24 or is the just pertaining to A.11?
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Post by Wes on Feb 24, 2024 18:38:05 GMT
Thanks, for the follow up and the new thread, I have only been getting A.11 error code. The module was swapped with another machine and the issue has followed the module. I am going to try to see if I can isolate a new part being the problem and inspect the cables.
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Post by dave74 on Feb 24, 2024 21:30:12 GMT
Thanks for the update.
You said you have several machines giving the A.11 code. Do all these machines have roughly the same hours? Is there anything else they have in common?
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