Fresenius Medical Care 2008K Troubleshooting Manual page 44

F- 7.7.0 TROUBLESHOOT VALVES #34 AND #38
a) CAREFULLY return valve #31 AND #38 to their distribution board positions.
b) CAREFULLY return the flow and deaeration pump to their distribution board positions.
c) Place the machine into Rinse program. After six minutes, and referring to referring to
touch the (black) solenoids of valves #34 and #38. NOTE! Valve #34 is normally warmer than valve
#38. Are both warm (energized)?
Yes Valve #34 and/or valve #38 not opening! Automated Valve Leak Tests will NOT help!
No NOTE that BOTH VALVES #34 AND #38 will be checked and proceed to page 78,
TROUBLESHOOTING
F- 7.8.0 CHECK FLOW ERROR
All secondary flow paths are open!
a) CAREFULLY return valve #31 AND #38 to their distribution board positions.
b) CAREFULLY return the flow and deaeration pump to their distribution board positions.
c) Return to Dialysis program (remember to press the 'CONFIRM' key).
d) Call debug screen 0 and watch Flow Error for four minutes or until if Flow Error = 1 (intermittent or
constant). Proceed accordingly (two scenarios):
1) Flow Error = 1: a) ASSURE that the deaeration and Flow pump are running (i.e. plugged into the
2) Flow Error = 0 (constant): The above procedures may have eliminated a restriction in one of
the flow paths. A Flow Error is not presenting so do NOT continue at this time!
F- 8.0.0 CHECK ACFS (Debug screen 10)
a) Assure Dialysate Flow is ON (Dialysate Flow on/off LED off)!
IMPORTANT!
b) CAREFULLY watch loading pressure for two minutes. It MUST be cycling between its
NO LOWER
maximum and to
problem with loading pressure return to procedure number
c) Call debug screen 10. This screen shows voltages from various sensors that include 'real time' and
'recorded' (HI and LO) values. Recording begins one minute after the machine is turned on.
d) Watch ACFS (ignore HI and LO for now). Proceed accordingly (three scenarios):
1. ACFS = Between 0 and 3.0: See procedure number
2. ACFS = Between 3.1 and 8.0: See procedure number
3. ACFS = Between 8.1 and 13.0: See procedure number
F- 9.0.0 CHECK FLOW PUMP #21 PRESSURE
This procedure checks that the flow pump can create adequate pressure. A psi pressure gauge is installed
at the flow pump. IMPORTANT! Assure it reads 0 psi before installing it!
a) Referring to Figure 7
NOTE the FLOW MOTOR ONLY will be checked and proceed to page 60,
MOTORS.
b) Plug the concentrate connectors into their respective rinse ports to call the "Select Concentrate" screen.
VALVES.
distribution board correctly)!
b) ASSURE that all valves are plugged into the distribution board correctly!
c) Return to procedure number
than its minimum per
(page 15) if (and ONLY if) the Flow Motor shaft is NOT rotating counterclockwise
Fresenius 2008K Troubleshooting Guide
P/N 507298 Rev. B (Draft 1)
Section 1 – Flow Errors In Dialysis Program
F- 1.0.3 (page 15).
Table 1 (page 18). If (and ONLY if) there is a
F- 2.0.4 (page 18).
F- 11.0.0 (page 46).
F- 9.0.0 (page 42).
F- 10.0.0 (page 46).
TROUBLESHOOTING
Figure 20 (page 41),
Page 42