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Post by Chuck Weddle on Jan 12, 2023 14:53:14 GMT
I would be interested in knowing if kendec's serial #'s and Guest68's are close to each other. It sounds to me like there is a bad batch of magnets out there.
Guest68....Do you have an easy way of clearing the magnet dust out? Is Braun covering the cost of Retrofit kits?
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Post by Guest68 on Jan 12, 2023 15:17:13 GMT
Our Serial #'s start with 247XXX. I replace the magnets, filters, and Diacap, then rinse and C.T., check filters again for any residual. The machines are not under warranty, so not covering the cost which is costly. (Note: the retro fit magnet has a metal shroud around it.)
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Post by kendec65 on Jan 12, 2023 15:43:46 GMT
Our serial #'s are around 250XXX I do the same thing but have had to change the FPE and FPA gear pump on 2 machines. They are not under warranty as well and becoming pricey.
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Post by bcjammerx on Jan 15, 2023 17:09:51 GMT
We bought 42 machines in 2019 and as of now I have replaced 12 FPE internal magnets and 6 FPA internal magnets (due to them coming apart and causing alarms), so they will all eventually have to be replaced. (No bleach, C.T. only) The Retrofit kit Gear pump magnet (34562310) has fixed the problem so far. shoot all my machines are older but we did get some new ones last year. Do you recall the errors you were getting? I'll have to keep an eye out on them. I've had a few give ufp test failures right out the box and a couple giving temp errors I can't duplicate. none have acted up lately though...I shouldn't have said that...should not have said that
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Post by Guest68 on Jan 17, 2023 14:12:52 GMT
bcjammerx, The most common alarms are, DFS test failed, emptying of upline tank not possible at end of C.T., and noticeable magnet dust at filters and drain.
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Post by SrCusEngr on Feb 21, 2023 22:46:03 GMT
BTech0056> the temperature sensor that was moved has nothing to do with emptying the upline tank. That is a pneumatic/electronic problem, not a temperature problem.
The temp sensor had lost its usefulness via software, and it was decided to improve safety by moving it to pair with TSDE as a supervisor sensor.
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Post by SrCusEngr on Jun 11, 2023 3:13:19 GMT
Just an FYI: if it isn't mentioned anywhere else. Machines with serial numbers 245xxx to 255xxx were built with Rev L gear Pumps. These were a redesign because the earlier Rev K pumps were showing early loss of function due to a plastic insert on the magnet (Note: they can be repaired with the current magnet kit). So Micropump enhanced the magnet but left it uncovered/unsealed (Rev L). Shortly thereafter, as those machines hit the floor, about 6000 hrs later, pumps were found to be failing. They found the new magnet was flaking or cracking. Hence, the magnet repair kit (cheaper than pumps). This is a when at 255xxx S/N they changed to Rev M pumps. This does not change the gears (impellers) or their wear resistance, so poor flow can be caused by worn pump gears.
In 9.1B, the software was changed to prevent numerous VBICP/Empty Upline Tank alarms. First, degas pressure is verified at the start of disinfection. PE must be less than -35 mmHg. Then the software will no longer monitor degassing pressure (eliminates all those Low Temperature alarms) where low Degas pressure shut off the heater. Next, at the end of disinfection, but before rinsing the machine, the machine goes through an Empty The Upline Tank twice. The first test is through the normal pathway. FPE draws water from the heated water side of the tank, through open VVB, through the DF Block to FPE/FPA to drain. Next, it closes VVB and the upline tank refills. FPE must now draw water from the output of the heater, through open VBKO and the cartridge holder to open VBICP to the DF Block to FPE/FPA and then to drain. Note that in both instances, if EP is not able to pass water fast enough, the tank will not empty in the required time, and the test fails. This is far less strenuous on FPE/FPA but still a weak pump can defeat the test.
Hope this helps.
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Post by Akram Ahmed on Jun 14, 2023 14:11:58 GMT
Hallo I request all of you to help error my machine B. Braun dialog. Problem is Emptying of Uplinke Tanks not possible.
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Post by SrCusEngr on Jun 15, 2023 20:39:15 GMT
Hallo I request all of you to help error my machine B. Braun dialog. Problem is Emptying of Uplinke Tanks not possible. What version software are you running. What is the WTC (clock or hours). When does the problem occur, at the start of disinfection or near the end of disinfection? If you read some of the comments posted before your post, you may get some insight into the problem. On your FPE/FPA pumps, what is the "REV" letter?
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Post by etbiomed on Oct 21, 2023 14:29:53 GMT
Hello, I'm having issues with this Emptying up-line tank not possible just when I started the disinfection. I replaced FPE and FPA. Please help. Thank you V9.12 at 32000 Hours.
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Post by Admin on Oct 21, 2023 18:10:04 GMT
Check your level sensor. It’s not reading low
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Post by Nub on Nov 20, 2023 20:00:49 GMT
Having this same issue with a 9.12 machine with around 14,000 hrs. Replaced NSVB already. The machine also dumps a bunch of water out of the overflow(?) near the end of the citric thermal process.
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Post by SrCusEngr on Nov 20, 2023 20:53:47 GMT
It was commented on in a different thread that dumping water out of the overflow tube at the end of disinfection is due to a faulty FPE pump. I do not know the reason, but FPE/FPA pumps should last about 18,000 hours plus. However, that does not mean that they wont fail early.
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Post by Alistair on Mar 26, 2024 8:19:08 GMT
Its the pump bearings making the magnets rub against the housings
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Post by SrCusEngr on Mar 26, 2024 21:19:29 GMT
<Alistair> Short response, no. It is a short shaft with only one bearing, so almost no yaw or pitch. I would look more closely as to how you tightened the three gear pump mounting screws to the motor housing. First, set the assembly on its cover (vertical). Now loosen all three screws. Spin the external magnet, do you feel/hear scraping? You can apply slight pressure to an arm to relieve the scraping. Tighten the other screws first when you find the culprit. There is a close tolerance between the external magnet and the cap of the gear pump. If you tighten while horizontal, the weight towards one side can be enough to cause the rubbing. Those pumps can get to 2500+ rpm. You really want them balanced and centered.
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