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Post by dialysisbob on Feb 17, 2024 0:39:24 GMT
Hello,
I have a BS machine with about 24k and once in a while the condo will hit at 17 and gives me flow error in the debug screen and eventually will come down to its normal condo, might be a stuck valve? I have checked the daeration and flow as both have newer brushes.
Any help is appreciated.. I have recalibrated the temp as I thought at the beginning this is the issue, recalibrated both acid and bicarb and same thing keeps happening.
Thanks!
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Post by dave74 on Feb 17, 2024 3:58:17 GMT
Welcome to this forum.
You need to troubleshoot the flow error before anything else. The heater turns off when there is a flow error, and the conductivity may go to 17.
Here is a quick guide for troubleshooting flow errors from our tips and tricks section.
Troubleshooting Flow Errors
1. 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 troubleshooting from Select Program Screen
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
Last Edit: Sep 5, 2023 at 12:52pm by dave74
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