Fresenius Medical Care 2008K Troubleshooting Manual page 27

F- 4.4.0 CHECK THE 'NOTED' VALVE
a) Turn the machine off.
b) Unplug the NOTED valve(s) from the distribution board position
labeled "V24" or "P24" = valve #24; "V43" or "P43" = valve #43.
c) Referring to the Figure (right), open the female distribution
board connector. Assure the wires are well soldered between
pins 1 and 5 (top and bottom).
d) Measure resistance ( ), inside the female connector, between
the two wires.
e) Is the meter's numeric AND units display indicating between 40 and 100
Yes Two possibilities: 1) Bad actuator cable (see
2) Bad distribution board.
No Replace the valve AND its blue wiring harness.
F- 5.0.0 CHECK FLOW PROBLEM
With the shunt door open, from debug screen 6, is BC Switch = 897 constant?
Yes See F- 5.1.0
No Close the shunt door and see
F- 5.1.0 CHECK 'IN BYPASS' CIRCUIT
a) Call the Home screen.
b) Set Dialysate flow to 800 ml/min (NOT "a800").
IMPORTANT!
c) Close the shunt door.
d) Press and release the 'RESET' key then immediately press and hold it for three seconds. If the "Adjusting
TMP" message is present allow it to expire. If a TMP alarm occurs attempt the RESET sequence up to
two more times then continue.
e) Do NOT reset alarms again until instructed!
f) With the Bypass LED (front panel) ON constant, is the 'bob' inside the external flow indicator
(#75) moving up and down?
Yes See procedure number
No See F- 5.2.0
F- 5.2.0 CHECK BALANCING CHAMBER VALVE CONNECTIONS
IMPORTANT!
a) ASSURE Dialysate flow REMAINS ON (Dialysate Flow on/off LED off)!
b) Parts c through e check valve wiring. This especially important if the machine was previously worked on
by someone who may have connected them incorrectly. If
worked on previously see procedure number
perform parts c through e
c) Referring to Figure 9
locations.
d) CAREFULLY trace the blue wiring harness from each valve's distribution board connector to their (black)
solenoids. Wiring harness tie wraps may have to be removed!
e) If (and ONLY if) a wiring error is NOT located see procedure number
(page 25).
F- 5.2.0
F- 14.0.9
(page 25).
.
(page 26), ASSURE that all valves are plugged into their proper distribution board
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 1 – Flow Errors In Dialysis Program
Figure 4A, page 8);
(page 25).
(page 51).
absolutely sure
F- 6.0.0 (page 26) otherwise it's HIGHLY recommended to
?
the machine was not
F- 6.0.0 (page 26).
Page 25