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Post by biomedfossil on Jun 25, 2024 16:28:03 GMT
Good morning.. I have a T machine with appx 35,000 hours. We are seeing a E08 code on the blood pump. The problem doesn't seem to be a constant issue. It seems to come and go. Happens out on the floor and we repair it (we think) and then comes back a few days later. There isn't much in the troubleshooting manual about blood pump issues. I was wondering what the most common issue is with this code. I am coming behind a couple of people working on the machine and I am not sure what has been done. It looks as if the blood pump module has been switched, 24 V harness and the rainbow cable from the functional to the module has been changed. I have checked the voltages from the power supply with the ext board. 24V (A) is 24.5V, 5V is at 5.1V and 12V is within range. So I am thinking the power supply, module and rainbow cable is good. So my next thought is module cable, functional, power logic or motherboard. Thoughts??
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Post by ThereAreSomeWhoCallMeTim on Jun 25, 2024 17:32:38 GMT
According to the troubleshooting guide is suggests checking/replacing the 24 V first (which it seems like you did) then the ribbon cable (grey one) then LP955 (switch modules). If you have checked all 3 of those then I would look at the motherboard to see if there is any scorch or corrosion marks and then function board as well as those are the 2 places the blood pump connects to. I would also Check 24 V-C on the extender as that is the one that runs to the modules and 24-B as well as that runs to the boards. If any of those don't come out to 24 V then it could be an issue on the power control board with the 24V switch.
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Post by sheepdog1 on Jun 26, 2024 14:35:00 GMT
I thought all E codes were automatic free replacement? call F comp i believe they are
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Icebonez
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Post by Icebonez on Jun 26, 2024 14:55:38 GMT
My fix has almost always been a new LP955 board.
I know you mentioned the entire module may have been replaced. Is it possible that is not the case, or that the Arterial Pressure calibration was done incorrectly? I am not sure if skipping the last step and not saving the voltages could cause an E.08.
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Post by Phillip-Ashley Ludlow on Jun 26, 2024 15:26:06 GMT
I thought all E codes were automatic free replacement? call F comp i believe they are mmmmm. your kind of right, but there are a few rules to it. So, there is an “extended warranty” for blood pumps aval for everyone, but the codes have to be one of the following: E.02: Flash ROM CRC error E.03: RAM check error E.05: Serial EEPROM error
All of which suggest replacement of the LP955 board PN: 677818
And even then, there’s some stuff you’d have to go over with Tech/Custy Services to get the ball rolling on the free replacement, so its not a slam dunk, per-se ( they’d prob have you send it in to get tested, and credit you if they find it faulty, but that just abit ‘o speculation on my part from past experiences)
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Post by 48yrshuntinbubbles on Jun 26, 2024 23:07:33 GMT
Way to go on the 35k hours, the hall sensors have caused that in the past, a couple of times they just needed unplugging and plugging back in.
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Post by pecodee on Jun 27, 2024 16:52:09 GMT
Possibly the brushes in the motor are wore down. Newer art blood pump motors can be rebuilt. Older version you have to replace the motor.
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Post by dave74 on Jun 27, 2024 19:46:34 GMT
The OP believes the blood pump module has been changed.
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Post by biomedfossil on Jul 16, 2024 0:47:52 GMT
It looks as if the machine is fixed now. The power supply was changed and the problem hasn't returned so far. That's a good sign.. Thank You for your help.
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Post by dave74 on Jul 16, 2024 1:37:53 GMT
Thanks for posting your fix.
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