I have gotten an A,24 error on the blood pump on a K with 5k hours. Second time this came up in two months. Could not duplicate and dn't want to spend the money on a blood pump unless I have to.
5K hours shouldn't have worn the brushes out on the motor, however, there is that confounded tach-o-meter. If the calibration does not work and If you have an hour and an known working bloodpump module, swap the motors. Then run it in dialyze mode for a few minutes. Alarm code returns, then you have a board problem.
I checked the arterial pump cal and when I set the 100 RPMs, it was originally run 5 RPMs faster. The cal took and I am letting it run. I never could get it to mess up for me before, so it may be a long time before it fails again.
Send the bad motor to H&S Technical for rebuild. And did you remember to remove the O ring and bushings from the old motor and put them on the new motor? I have seen several of those bad motors around that still had the O ring on the nose and the bushings for the mounting screws still in them. Fresenius does not provide those when they send out a new motor, and it's really easy to overlook them.
Posts: 445 | Location: Cleveland.OH | Registered: 03 February 2006
I changed it out and compared the two pumps to change over any parts. I think I got it all unless something was not visually obvious. It ran fine and passed my tests. Anyway, I held on to the old one just in case that was nto the solution.
Check the connection from the pump to the board, I've found it to be a big issue with A 24 alarm.
<Dr. Machine>
Posted
Have you had an issue with this pump chettrick since you replaced the motor? I have one doing the exact same thing, and after checking connections, recalibrating the speed, its still doing giving the alarm.
Oh jeez, sorry man, I didn't realize this was an OLD thread, haha...someone must have bumped it. Yea, I just ordered the new motor for it, since the Tachometer is attached to the frickin' thing, and can't be removed. Thanks for the reply
