Pht- 4.6.0 Uf Integrity Test Failed; Pht- 4.7.0 On Line Pht Failed/Diagnostic Valve Leak Tests/Valve #24 And #25 - Fresenius Medical Care 2008K2 Troubleshooting Manual

PHT- 4.6.0 UF INTEGRITY TEST PASSED
a) Return the UF Pump's tubing.
b) Was the machine originally pulled for service because of reported "On Line PHT Failed"?
Yes On Line PHT Failed! See procedure number
No See procedure number
PHT- 4.7.0 ON LINE PHT FAILED / DIAGNOSTIC VALVE LEAK TESTS / VALVE #24 AND #25
ONLY two (2) valves will be tested, Valves #24 and #25:
a) Place the machine into Service Mode → Diagnostics → Valve Leak Test.
b) Allow the [Test Status] data box = "Ready".
c) Select the screen's [Valve Number] data box.
d) K machine use the up/down arrow keys until [Valve Number] = "Valve #24"; K
+/- keys until [Valve Number] = "Valve #24".
e) Press 'CONFIRM'.
f) Allow "Prep" and "Testing" to complete then read the [TEST STATUS] box, TWO (2) possible scenarios:
1) IF "Failed": REPEAT the test on the leaking valve. If (and ONLY if) it fails AGAIN TWO (2)
possibilities: 1) Replace the Actuator-Test Board with a known good then repeat the Valve Leak
Test to test on the valve. If (and ONLY if) the valve fails again: 2) Leaking valve! To locate the
valve refer to Figure 35
2) IF "Passed": REPEAT the Valve Leak Test on "Valve #25". Do BOTH valves #24 and #25 pass?
Yes BOTH Valves #24 AND #25 pass! See procedure number
No A valve fails! TWO (2) possibilities: 1) Replace the Actuator-Test Board with a known good
then repeat the Valve Leak Test to test it. If (and ONLY if) the test fails again: 2) Bad valve!
To locate the valve refer to
page 488
PHT- 5.0.0 (
(page 193).
Figure 35 (page 193).
LEFT BLANK INTENTIONALLY
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
PHT- 4.7.0 (page 487).
).
PHT- 5.0.0
2
machine use the
(page 488).
Page 487