Fresenius Medical Care 2008K2 Troubleshooting Manual page 426

IMPORTANT!
d) Allow thirty (30) seconds BEFORE continuing to part e
e) Based on debug screen's FILACT now, TWO (2) possible scenarios:
1) IF (and ONLY if) FILACT ALWAYS = 0: See procedure number
2) IF FILACT = 1 or cycles between 0 and 1: Perform parts a THROUGH c below:
a) ENSURE the plug is placed PROPERLY in the Air Sensor's position! If CBE equipped, using a
flashlight, ENSURE the plug covers ALL CBE board pins especially the TOP pin! If FILACT
remains = 1 see part b! If FILACT now = 0 always see procedure number
423).
b) Use a different plug! If FILACT remains = 1 see part c. If FILACT = 0 always see procedure
number FIL- 2.4.0
c) SIX (6) possible bad components: 1) CBE board
4) Functional Board
a
A) Swap in a known good CBE board; B) Return the resistor plug PROPERLY to the Air
Sensor's position!; C) Return to Dialysis Program ('Dialysis' → 'CONFIRM'); C) From debug
screen 1, if FILACT now = 0 the previous CBE board may be bad.
b
A) Swap in a known good board; B) For each board, to prevent "Cond Offset" Failure", place
the machine into T and C Mode (refer to
defined.); C) Return to Dialysis Program; D) From debug screen 1, if FILACT now = 0 the
previous board is bad.
(page 423).
b
; 5) Distribution board; 6) Motherboard.
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
FIL- 2.4.0
a b
; 2) Sensor Board
OPERATING MODES, page Error! Bookmark not
(page 423).
FIL- 2.4.0 (page
; 3) Sensor Board cable
Page 422
c
;