Fresenius Medical Care 2008K2 Troubleshooting Manual page 50

10)
Call debug screen 0. Watch Flow Error for five (5) minutes. If it EVER = 1 along with a "TMP is
High" alarm and/or "Filling Program" AND Loading Pressure remains 'OKAY' may indicate a: 1)
Restricted DiaSafe
step #11.
11)
If Conductivity is remaining less than 14.3 mS continue to step #12. If Conductivity increases to
14.4 mS or more, ENSURING Loading Pressure remains 'OKAY' AND drain flow is GOOD (i.e.
Valve #41's 'dot' cycling between blue and white) may indicate an intermittent 'stuck closed'
balancing chamber valve. Diagnostic Valve Leak Tests will NOT help but procedure number
page 62
( ) may.
12)
CLOSE THE SHUNT DOOR then continue to step #13.
13)
From debug screen 0, allow Valve #24's 'dot' to turn blue i.e. no Temp, Cond alarms THEN continue
to step #14.
14)
If Flow Error remains = 0 for five (5) minutes continue to step #15. If Flow Error EVER = 1 along with
a possible "TMP is High" and/or "Filling Program" AND Loading Pressure remains 'OKAY' may
indicate: 1) A restricted DiaSafe
3) Restricted Valve #24 OR; 4) Restricted Valve #25.
15)
BEFORE continuing to step #16, NOTE this page number as you may be prompted to return here.
16) page 535
Proceed to
CHAMBER DIAPHRAGM
17)
If a leaking balancing chamber diaphragm was not located in step #16 continue to step #18.
18)
If Deaeration motor brushes have not been replaced at 8000 hour intervals do so now. If Flow motor
brushes have never been replaced do so now. ENSURE 'soft brushes' are installed in the Flow motor!
19)
Return to Dialysis Program.
20)
From the Home screen, select the [Dialysate Flow] window.
21)
Set [Dialysate Flow] to 500 ml/min and press 'CONFIRM'.
22)
ENSURING debug screen 0's Chamber #69 says "No Air" constantly, if necessary, RESET a TMP
alarm then continue to step #21.
23)
Call debug screen 0. Without resetting alarms, ENSURING Flow Error is NEVER = 1 watch FLWP
for several minutes. If it changes by more than +/- 2 either the DiaSafe
Pump or motor may be bad!
24)
If the preceding steps did not locate a problem the Troubleshooting Guide cannot locate a Flow Error!
®
filter OR: 2) Restricted Valve #26. If Flow Error is ALWAYS = 0 continue to
®
filter OR; 2) Restricted external dialysate line filter #73 OR;
to perform SECTION 19 - TESTING FOR A LEAKING BALANCING
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
F- 7.0.0
®
filter may be bad OR the Flow
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