2008T Troubleshooting Guide
P/N 490292 Rev. A
F- 6.1.6 ISOLATE DIALYSATE PRESSURE (PDIAL)
Call debug screen 4 to again watch PDIA for TWO (2) FULL minutes. TWO (2) possible scenarios:
1) IF (and ONLY if) PDIA increases to more than 8.0 OR drops to less than 2.0: Return to
page 60, procedure number F- 6.1.1.
2) IF PDIA NEVER increases to more than 8.0 OR drops to less than 2.0: As NOTED in procedure
number F- 6.0.0 (page 58), drain flow was either: 1) Pulse – Stop – Pulse – Stop – etc. (NO ‘dribble’)
OR; 2) Pulse – Stop – Pulse – ‘dribble’ (a noticeably weaker stream) etc. TWO (2) possible scenarios
i) or ii) below:
i) IF (and ONLY if) drain flow = Pulse – Stop – Pulse – Stop (NO ‘dribble’)
: See procedure
number F- 6.1.7 (page 64).
ii) IF drain flow = Pulse – Stop – Pulse – ‘Dribble’ (two second slow stream): A procedure, in a
different Section, is performed next. NOTE this page and procedure number (F- 6.1.6), because
you may prompted to return to here, THEN perform parts A through C below:
A) BEFORE continuing to part b proceed to
page 580, to perform SECTION 19 - TESTING FOR
A LEAKING BALANCING CHAMBER DIAPHRAGM.
B) If a balancing chamber diaphragm leak was not located in part a, return to Dialysis Program
(“Select Program” → ‘Dialysis’ → ‘Enter’).
C) See
part b of procedure number F- 6.1.7 (page 64).
F- 6.1.7 ISOLATE FLOW PUMP CONTROL (FLWP)
a) If (and ONLY if) you have EVER seen [Temperature] ‘bounce’ up and down, more than 0.5º C, with
less than one (1) second in between, TWO (2) procedures: #1) NOTE this page and procedure number
(F- 6.1.7) for as you may be prompted to return here; #2) BEFORE continuing to part b proceed to
page 580, SECTION 19 - TESTING FOR A LEAKING BALANCING CHAMBER DIAPHRAGM.
b) Call debug screen 1. FLWP (upper right column) is a digital-to-analog value that controls Flow Pump
speed. It should remain stable (+/- 2). Without looking away watch FLWP for up to THREE (3) minutes.
Does it increase steadily more than 4, until a Flow Error occurs then falls only to increase again until a
Flow Error occurs, etc.?
Yes FLWP ramping up and down more than +/- 2: Possibly a tubing restriction somewhere. Start with
the Diasafe
®
filter possibly even inside the
housing.
No FLWP remaining stable: See procedure number F- 6.1.8 (page 65).
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