Co- 9.0.0 Bic Dot Is White/Isolate Bicarb Debug Signal - Fresenius Medical Care 2008K2 Troubleshooting Manual

CO- 9.0.0 BIC DOT IS WHITE / ISOLATE BICARB DEBUG SIGNAL
A) Per the Figure below, inside the distribution board, unplug the
This is the Bicarb Reed Switches Connector, "X12, BIC-SW".
B) Using a flashlight, check inside the "BIC-SW" position for corrosion or damaged male pins as this may
be the problem!
C) Call debug screen 0.
D) WITHOUT LOOKING AWAY, watch the bicarbonate (BIC) pump's 'dot'
(Figure right) for two (2) minutes. Does it REMAIN AWAYS blue?
Yes Bic 'dot' remains blue! Referring to the
Figure right, the Bicarb Reed Switch
(#12) is bad.
No Bic 'dot' remains white OR cycles between white
and blue! Continue to part E.
E) Leave the BIC Reed Switch unplugged till the problem
is solved i.e. until the Bic 'dot' stays blue!
F) Turn the machine OFF!
G) One at a time, swap in the listed components (see
COMPONENT LIST below) with known good THEN
perform parts H and I to test the new component.
COMPONENT LIST: 1) Actuator-Test Board; 2) Sensor Board*; 3) Sensor Board cable; 4) Functional
Board*; 5) Distribution board; 6) Motherboard.
* For each board, to prevent "COND OFFSET" alarms place the machine into T and C Mode (refer to
OPERATING MODES, page Error! Bookmark not defined.)
H) Return to Dialysis Program ("Select Program" → 'Dialysis' → 'CONFIRM').
I) Call debug screen 0. If the Bic 'dot' REMAINS blue the last component swapped in was the problem. If
still white or cycling between white and blue return the to part F to swap in the next component
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
th
9
CONNECTOR CAP from the left!
Page 374