Fresenius Medical Care 2008K Troubleshooting Manual page 18

F- 1.0.5 CHECK FLOW PUMP ACTUATOR BOARD CONTROL
a) Plug the red concentrate connector into concentrate. The blue connector (if using bicarbonate) should be
connected to fresh bicarbonate.
b) Select the screen's 'Dialysis' button. With K
'CONFIRM' key.
c) Press the 'CONFIRM' key. The machine is now in Dialysis program.
IMPORTANT!
d) Assure Dialysate flow is ON (Dialysate Flow on/off LED off).
e) Call debug screen 1. FLWP (upper right) is (three scenarios):
1. Cycling between 255 and 160: See procedure number
2. REMAINING less than 255: See procedure number
3. REMAINING 255: Momentarily place the machine into Rinse program then repeat procedure number
F- 1.0.5 (page 16). If (and ONLY if) you return here (because FLWP is remaining 255) two
possibilities: 1) Bad actuator board; 2) Bad function board.
F- 1.0.6 CHECK FOR ELECTRICAL 'VALVE CIRCUIT' MALFUNCTION
From debug screen 1, is VERR (lower right corner) greater than 5?
Yes See procedure number
No See procedure number
F- 1.0.7 VERIFY VALVE CIRCUIT MALFUNCTION
a) Turn the machine off (to reset VERR) then back on.
b) Return to Dialysis program (remember to press the 'CONFIRM' key). ASSURE Dialysate Flow is ON
(Dialysate Flow on/off LED off).
c) Call debug screen 1. Is VERR INCREASING at one unit per second?
Yes NOTE the machine is in DIALYSIS PROGRAM then proceed to page 81,
TROUBLESHOOTING VALVE
No VERR is remaining less than 5. See procedure number
F- 1.0.8 CHECK BALANCING CHAMBER CYCLING
Call debug screen 2 and CAREFULLY watch FLWOUT for 40 seconds. Is
FLWOUT cycling between 0 and 1 (possibly every nine seconds)?
Yes See procedure number F- 1.0.9 (page
No The balancing chamber valves are NOT cycling. See procedure number
F- 1.0.9 CHECK FILLING PROGRAM ACTIVE (FILACT)
a) Referring to the Figure (right), UNPLUG the connector (or resistor plug*)
at distribution board position labeled "AIR-SEN". This is air sensor #6.
* Other Troubleshooting Procedures may have placed a resistor plug
here previously.
b) Leaving the "AIR-SEN" position EMPTY,
30 seconds. FILACT response is not instantaneous!
c) From debug screen 1, does FILACT = 1?
2
machines ONLY the button turns blue, then press the
F- 1.0.7 (page 16)
F- 1.0.8 (page 16).
ERRORS.
16).
IMPORTANT!
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 1 – Flow Errors In Dialysis Program
F- 1.0.6 (page 16).
F- 1.0.6 (page 16).
F- 1.0.8 (page 16).
ALLOW up to
F- 4.0.0 (page 23).
Page 16