Eos- 1.0.0 Determine The Eos Error; Section 6 - Concentrate Pump Errors - Fresenius Medical Care 2008K2 Troubleshooting Manual

SECTION 6 – CONCENTRATE PUMP ERRORS
The CONC (Acid) and Bic (Bicarbonate) pumps each have optical End Of Stroke (EOS) sensors that
monitors the pump pistons when transported back and forth by their stepper motors. From debug screen 0,
per the Figure below, if all systems are okay, the 'Actual' number of steps (AAcid, ABic) REMAIN within
three (3) of the 'Required' number of steps (Acid, Bic). If not the pump symbol may turn pink.

EOS- 1.0.0 DETERMINE THE EOS ERROR

A) Per Figure 63 (page 398), ENSURE the pumps are installed with their output (red or blue) nozzles
towards the top and the cable extending from the side. If not, this may be the problem!
B) Note this page number then perform
located.
C) If the problem was occurring in a Cleaning Program (Heat Disinfect, Rinse, etc.) return to it. If the
problem was occurring in Dialysis Program: 1) Return to Dialysis Program ("Select Program" →
'Dialysis' → 'CONFIRM'); 2) From the Home screen, set [Dialysate Flow] to 800 ml/min!
D) Call debug screen 0. If debug does not appear press 'Escape' then call screen 0.
E) Allow thirty (30) seconds THEN, WITHOUT LOOKING AWAY, watch the pump symbols for up to two
(2) minutes OR until if one turns pink! FOUR (4) possible scenarios 1) or 2) or 3) or 4) below:
1) IF the CONC (acid)
is ALWAYS white: ACID pump system problem! See procedure number
2) IF the CONC (acid)
(solid or blinking): BIC pump system problem!. See procedure number
3) IF BOTH the CONC (acid)
See procedure number
4) IF BOTH pump symbols REMAIN ALWAYS white (NEVER pink): See parts a AND b below:
a) WITHOUT LOOKING AWAY, watch AAcid versus Acid for up to five (5) minutes. If AAcid
REMAINS within +/- 3 of Acid the acid pump system is okay (for now anyway). In this event
continue to part b. If AAcid does NOT remain within +/- 3 of Acid then TWO (2) possible bad
components: 1) Bad ACID pump OR; 2) Bad Actuator-Test Board.
b) Watch ABic versus Bic for up to five (5) minutes. If ABic REMAINS within +/- 3 of Bic the
bicarb pump system is okay (for now anyway)! If ABic does NOT remaining within +/- 3 of Bic
then TWO (2) possible bad components: 1) Bad BICARB pump OR; 2) Bad Actuator-Test
Board.
INITIAL CHECKS
symbol is EVER pink (solid or blinking) AND the BIC
symbol is ALWAYS white AND the BIC symbol
AND the BIC
page 402
EOS- 5.0.0 (
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
(page 6) and return here if a problem is NOT
symbols are EVER pink (solid or blinking):
).
symbol
EOS- 2.0.0 (page 398).
is EVER pink
page 399
EOS- 3.0.0 (
Page 397
).