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Post by biotechchi on Jan 18, 2024 20:11:10 GMT
Hi all,
I am having an issue with an machine intermitting high and low flow error. I already replace d pump, flow pump, both gear heads, trans 9, v26, v24, v25 and b/c. Please help with issue.
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Post by dave74 on Jan 18, 2024 21:15:11 GMT
Welcome to this forum.
We have flow error troubleshooting guide in the 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
It's tough to troubleshoot if you can't catch it in the act of having a flow error.
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