2008T Troubleshooting Guide
P/N 490292 Rev. A
PHT- 4.4.0 REPEAT PRESSURE TESTS
Call debug screen 1. While watching the screen banners
1
, ATMP
1
AND FILACT
2
allow the tests to finish.
Do BOTH (Negative and Positive) pass?
Yes BOTH pass! See procedure number PHT- 4.5.0 (page 530).
No Pressure Test Failed! Return to (ABOVE) procedure number PHT- 3.1.2 (page 524) to analyze
the failure(s).
1
If ATMP changes more than 20 during “Neg Flow On’s” HOLD period indicates a leak
2
After “Remove Air”, if FILACT EVER = 1 indicates a hydraulic air leak.
PHT 4.5.0 BOTH TESTS PASS / PERFORM UF INTEGRITY TEST
The UF INTEGRITY TEST, performed here, isolates the UF Pump for leaks:
a) Figure right, remove the TOP
(output) tubing from between the UF
Pump and Check Valve #63.
b) Attach a tubing segment to the vacant
Pump nozzle that is long enough to route
it away from the hydraulics.
c) RESET all alarms!
d) From the [Test & Options] screen
repeat the Pressure Tests.
e) Do BOTH Pressure Tests pass?
Yes BOTH Tests pass! See procedure number PHT- 4.6.0 (page 531).
No a) Rebuild the UF Pump per the
Preventative Maintenance
Procedures booklet
ENSURING the springs and
seals are properly installed!
b) Return to Dialysis Program.
c) Repeat the Pressure Tests.
They MUST pass with AND
without the UF Pump OUTPUT
tubing attached!
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