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 Mar 31, 2023 15:01:10 GMT
Anyone have any good tips or tricks for chasing down flow errors? I've got at least two machines that love to cycle back into my office for flow stuff. The pressures are always solid and I always check the FLWP is where it needs to be. Messed with valve leak tests for a while, but I know some have had issues with them in the past. I've also spent way more time in the TS Guide than I'd like to admit, but I find it very hard to work through sometimes. I hate having to throw parts at something due to my limited experience with the machines.
My machines are 2008T Bluestar Premium with Bi-Bags, 0T0s with 10k-11k hours. Any advice would be greatly appreciated.
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Post by dave74 on Mar 31, 2023 16:32:49 GMT
Thank you for sharing that, pacnw.
I have moved pacnw's post to the Tips and Tricks section, so people will be able to reference when needed. I am copying it here.
This cheat sheet comes from Advanced Trouble shooting class... I find it very helpful! You can check flows on all valves in nothing flat!
FLOW ERRORS
!. CHECK Loading pressure. Good pressure means the error is on the secondary side, Bad pressure it’s on the primary side. Always start with this. Read your pressures while the error is present. If intermittent wait for the issue to show then read the pressure.
2. Check valve 101 if Bibag
3. Unplug #6 and put a temperature resistor into the place so you are checking valves 43 and 30. Flow to drain if good. No flow valve 30 or 43 are bad
4. Open shunt door to check valve 24 and 25. If the error goes away it’s valve 26, if it stays you have cleared all three valves.
5. check drain flow
6 check conductivity= if condo high= stuck closed BC valve
Stuck closed BC Valve troubleshooting from Select Program Screen
Plug valve 35 into V30’s spot and check flow at red Hansen hose. If no flow loosen BC valve 31 from the B/C. If you have dialysate coming out of the valve, 31 is the bad valve. No flow it’s valve 35
Plug Valve 37 into V30’s spot and check flow at the red Hansen. If no flow loosen BC valve 33. If you have dialysate coming out of the valve, 33 is the bad valve. No flow it’s valve 37.
Flow should be the same or 800 ml a minute
7. Check TMP
High TMP=top of the screen(negative) = stuck open BC valve on spent side
Low TMP = Bottom of screen or Positive= stuck open BC Valve on fresh side
If you suspect a leaking BC Valve then run the leak test. Rinse machine before running test
Spent side checks
1. Put dialysate connectors into a bucket of water.
2. Plug flow pump into deaer spot
3. Plug valve 36 into Valve 33 check flow rate at end of drain hose. No flow… loosen valve 32 from the top of the balance chamber. No flow shows valve 36 is bad. Flow shows valve 32 is bad.
4. Plug valve 38 into valve 33 check flow rate at the drain No flow… loosen valve 34 from the top of the balance chamber. No flow shows valve 38 is bad. Flow shows valve 34 is bad.
5. Should be equal amounts
Whats left to check is Diasafe and CFS switch
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Post by Guest on Apr 2, 2023 11:52:50 GMT
I have had a lot of issues with the Bluestar's (hi/low flow errors) and it usually ends up being cfs10.
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Post by gnurk on Apr 2, 2023 12:08:07 GMT
good info dave thanks
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