F- 6.1.6 Isolate Dialysate Pressure (Pdial); F- 6.1.7 Isolate Flow Pump Control (Flwp) - Fresenius Medical Care 2008K2 Troubleshooting Manual

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
52,
procedure number
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 50), 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')
number F- 6.1.7
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 part A through C below:
A) BEFORE continuing to part b proceed to
A LEAKING BALANCING CHAMBER
B) If a balancing chamber diaphragm leak was not located in part a, return to Dialysis Program
("Select Program" → 'Dialysis' → 'CONFIRM').
part b
C) See

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 535
, SECTION 19 - TESTING FOR A LEAKING BALANCING CHAMBER
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
No FLWP remaining stable: See procedure number
F- 6.1.1.
(page 56).
of procedure number F- 6.1.7
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
page 535
, to perform
DIAPHRAGM.
(page 56).
®
the Diasafe filter possibly even inside the
housing.
F- 6.1.8 (page 57).
page
:
See procedure
SECTION 19 - TESTING FOR
DIAPHRAGM.
Page 56