Fresenius Medical Care 2008K2 Troubleshooting Manual page 29

Chamber #69 says "Air' continued:
d) Use a different plug from the
Air" always see procedure number
e) The text box continues to say "Air" OR toggles between "Air" and "No Air". SIX (6) possible bad
components: 1) CBE board
5) Distribution board; 6) Motherboard.
A) Swap in a known good CBE board; B) Return to Dialysis Program ("Select Program" →
1
'Dialysis' → 'CONFIRM'); C) Plug one of the resistors, from the four-resistor set, into the
new CBE board; D) From debug screen 0, if the text box now says "No Air" always the
previous CBE board is bad.
Leaving the resistor plug installed:
2
good Sensor Board; B) To prevent "Cond Offset Failure" place the machine into T and C
Mode (refer to OPERATING MODES
Dialysis Program); D) From debug screen 0, if the text box now says "No Air" always the
previous Sensor Board is bad.
Leaving the resistor plug installed:
3
NOTE that one (1) AIR SENSOR connection will be checked and proceed to
SECTION 17 - CHECKING THE SENSOR BOARD
Leaving the resistor plug installed:
4
Functional Board; B) To prevent "Cond Offset Failure" place the new Functional Board into T
and C Mode; C) Return to Dialysis Program; D) From debug screen 0, if the text box now
says "No Air" always the previous Functional Board is bad.
four-resistor
F- 1.0.5 (page 26). If it EVER says "Air" continue to part e.
1
; 2) Sensor Board
(page Error! Bookmark not defined.); C) Return to
LEFT BLANK INTENTIONALLY
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
set! If (and ONLY if) the text box now says "No
2 3
; 3) Sensor cable 4) Functional Board
A) With the machine off, swap in a known
The Sensor Board cable can be checked.
CABLE.
A) With the machine off, swap in a known good
4
;
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