Fresenius Medical Care 2008K Troubleshooting Manual page 171

FIL- 1.0.4 VERIFY VOLTAGE PROBLEM
Proceed accordingly:
Voltage STABLE but not within the specified range: Perform VOLTAGE DETECTION
CALIBRATION. If (and ONLY if) unsuccessful, replace the power logic board (see
B, page 8). If (and ONLY if) the problem still exists (bad +12 or +5 volts) after board replacement
proceed to page Error! Bookmark not defined.,
DISTRIBUTION.
Voltage is UNSTABLE: Call debug screen 3. Is !ECH AND/OR !ACK greater than 3?
Yes Turn the blood pump off then turn the machine off, back on and place it into Dialysis
Program. Check !ECH and !ACK again. If remaining less than 3 replace the blood pump
motor. If continuing to increase check the deaeration and flow motors for excessive carbon
build up and/or bad brushes.
No Replace the power logic board (see
problem still exists (unstable +12 or +5 volts) after board replacement proceed to page Error!
Bookmark not defined.,
FIL- 1.0.5 CHECK LOADING PRESSURE
a) ASSURING the loading pressure gauge reads 0 psi
SLAM
before inserting it,
rinse port (see Figure right).
b) Per Table G (page 169), pressure MUST be
fluctuating to its maximum AND
below the minimum. CAREFULLY watch BOTH
levels for two minutes. Is loading pressure okay?
Yes See procedure number
No Proceed to page 18, procedure number
Table G
®
DiaSafe filter?
Yes
No
FIL- 1.0.6 CHECK 'OUT OF BYPASS' FLOW
a) Call the Home screen. Watch Temperature and Conductivity for one minute. Two checks:
1) Temperature MUST be between 35.5 and 38.5° C AND does
not vary more than +/-
MUST NOT be RED!
2) Conductivity MUST be between 13.0 and 14.5 mS AND does
not vary greater than +/-
is red adjust the conductivity alarm limits.
IMPORTANT!
b) Close the shunt door!
c) From the Home screen, set Dialysate to 500 ml/min (NOT "a500") and press the 'CONFIRM' key.
IMPORTANT!
d) Do NOT reset alarms!
SECTION 24 – TROUBLESHOOTING POWER
it into the red Acetate/Acid
NEVER
dropping
FIL- 1.0.6 (page 169).
Maximum: Minimum (no lower than):
23 – 25 psi
18 – 20 psi
0.15°
C. The Temperature window
0.2
mS. If the Conductivity window
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
SECTION 24 – TROUBLESHOOTING POWER
Figure 4A and NOTE B, page 8). If (and ONLY if) the
F- 2.0.4.
15 psi
11 psi
Section 8 – Filling Program Problems
Figure 4A and NOTE
DISTRIBUTION.
Page 169